Tag: Amish

About That Amish Vaccine Exemption Lawsuit in New York

An Amish family has filed a lawsuit against a new vaccine law in New York that eliminated religious vaccine exemptions.

An Amish family has filed a lawsuit against a new vaccine law in New York that eliminated religious vaccine exemptions.

Folks who know that Amish do indeed vaccinate their kids are likely surprised by the lawsuit…

About That Amish Vaccine Exemption Lawsuit in New York

Wait, what?

The Amish vaccinate their kids?

While many Amish don’t vaccinate according to the recommended CDC schedule and get all vaccines, many do get at least some of them.

For example, when a large measles outbreak went through Amish communities in Ohio, many got in line to get vaccinated and stop the outbreak, which ended up getting at least 383 people sick.

That wasn’t the only outbreak among the Amish though.

Remember the last cases of wild polio in the United States?

“The 1979 outbreak occurred in unvaccinated Amish persons living in Iowa, Missouri, Pennsylvania, and Wisconsin. Overall, 15 cases of illness caused by wild poliovirus type 1 occurred among U.S. citizens: all 10 paralytic cases occurred among unvaccinated Amish persons; three cases of transient paralysis occurred among unvaccinated Amish persons; and two nonparalytic cases occurred among unvaccinated members of the Mennonite church who were in frequent contact with Amish persons. Epidemiologic and virologic evidence indicated this outbreak resulted from importation of poliovirus from the Netherlands through Canada (Ontario), where outbreaks had occurred during 1978 in members of religious groups with objections to vaccination.”

Poliomyelitis — United States, Canada

It was in 1979.

It was among the Amish.

And many Amish got vaccinated to help eliminate the endemic spread of polio in the United States.

“Immunization campaigns for the Amish are continuing; at least half of the nation’s Amish have now received 1 or more doses of oral poliovirus vaccine.”

Poliomyelitis — United States, Canada

So the Amish are clearly not against vaccines.

In 2004, there was an outbreak of pertussis (345 cases) in an Amish community in Kent County, Delaware.

“Of the 96 households interviewed in which a pertussis case was discovered, a total of 43 (45%) reported not vaccinating any children in their household, 40 (42%) households reported vaccinating at least some children, and 13 (14%) did not provide this information. Of the 43 households not vaccinating children, 19 cited “fear of side effects” as the reason, 13 reported that they “didn’t think about it,” and 11 did not provide specific reasons for nonvaccination. Of the 40 respondents who reported that their children had received vaccinations, 29 (64%) reported vaccination at vaccine clinics set up at Amish homes by DPH nurses.”

Pertussis Outbreak in an Amish Community — Kent County, Delaware, September 2004–February 2005

Although many of the kids weren’t vaccinated, religion didn’t seem to be what drove that decision.

“Religious factors and access to care were not among reasons most reported. “

Kettunen et al on Evaluation of low immunization coverage among the Amish population in rural Ohio.

It is usually fear, rather than religion that keeps the Amish from vaccinating and protecting their kids.

“The findings from the data analysis demonstrated that fear, especially concern over too many recommended immunizations and immunizations overwhelming the child’s system, was the most frequent reported reasons for not having children immunized according to recommendations.”

Kettunen et al on Evaluation of low immunization coverage among the Amish population in rural Ohio.

Unfortunately, this has meant that their children get a high rate of vaccine preventable diseases and that they end up getting hospitalized at higher rates than other children.

“The outcome of pregnancy was determined for the 94 Amish mothers who reported illness or had serologic evidence of maternal rubella (Table 1). CRS occurred in 10 infants, all of whom were born to mothers who had histories of rubella-like illness in the first trimester; seven had possible manifestations of CRS; nine were miscarried/stillborn; and 68 infants appeared normal at birth. During the study period, medical personnel identified one additional infant with CRS from Lancaster County whose mother was a conservative Mennonite. “

Congenital Rubella Syndrome Among the Amish — Pennsylvania, 1991-1992

So not only do the Amish get sick, they get sick for the same reason as typical anti-vaxxers – misinformation and fear of vaccines.

Is that what’s driving this lawsuit in New York?

I don’t know, but if it was just about religion, why does it include typical anti-vaccine talking points about:

  • fetal DNA contaminating our vaccines
  • that unvaccinated children were not responsible for the 2018-19 NYS measles outbreak, going so far as to cite an affidavit from Lawrence Palevsky, who said that “a measles infection in first world countries such as the United States, in 2019, is not deadly.”
  • how the 2018-19 NYS measles outbreak might not have been “true wild-type measles infections.”
  • that the theory of herd immunity is flawed
  • that vaccinated children pose more of a risk to other vaccinated children than the unvaccinated

More than anything though, how can the lawsuit say that New York’s vaccine law unreasonably burdens his “sincere religious beliefs without a compelling state interest,” when we know that the Amish aren’t really against vaccinating and protecting their kids?

You have to wonder what method his lawyer’s used to pick their “examples” of schools with religious exemptions.

About that compelling state interest…

As many parents have come to abuse religious exemptions, using them as personal belief exemptions, we have ended up in a situation in which over 30 schools in New York had religious exemptions rates of at least 50%, including 14 schools in which each and every student had a religious exemption for all vaccines.

All that even though no major religion is against vaccines!

With such a weak case, forum shopping might be his only strategy that could work…
With such a weak case, forum shopping might be his only strategy that could work…

What happens next?

More court stuff, but in the end, it hopefully means that more kids will be vaccinated and protected and we will #StopTheOutbreaks.

More on the Amish and Vaccines

Are Kids With Religious Exemptions Spreading Disease?

One common anti-vax talking point is that kids who are unvaccinated can’t spread disease because they aren’t sick. One lawsuit against New York’s new vaccine law went so far as to say that “there has not been one instance of a child with a religious exemption spreading disease in a school.”

Did Assemblymember Colton look for evidence?

Is that true?

I’m guessing it isn’t, but let’s do a little research…

Are Kids With Religious Exemptions Spreading Disease?

Before I considered the latest measles outbreak in New York and how many of those cases occurred in unvaccinated kids in school with religious exemptions, I found a few other examples.

“During April 4-May 17, 1994, the largest U.S. measles outbreak since 1992 occurred among students in two communities that do not routinely accept vaccination. This report summarizes the investigation of and control measures for this outbreak. The outbreak began in a 14-year-old Christian Science high school student who developed a rash on April 4, 2 weeks after skiing in Colorado where a measles outbreak was occurring. The student lived with her family in a community associated with a Christian Science college in Jersey County, Illinois, and commuted approximately 30 miles to a Christian Science boarding school (kindergarten through grade 12 {K-12}) in St. Louis County, Missouri.”

Outbreak of Measles Among Christian Science Students — Missouri and Illinois, 1994

At least 189 people got measles in these communities during this outbreak, including a student in New York.

“Eighteen prospective students from outside St. Louis County attended a carnival at the boarding school on April 16; eight developed measles after returning home (three to Maine, two to California, and one each to Missouri, New York, and Washington).”

Outbreak of Measles Among Christian Science Students — Missouri and Illinois, 1994

During another measles outbreak among Christian Scientists in 1985 in Illinois, there were at least 136 cases, including 3 deaths.

There were even more deaths during a measles outbreak in Philadelphia in 1991.

“According to Assistant Health Commissioner Robert Sharrar, four victims from Philadelphia – two girls 9 years old and two girls 11 and 13 – were affiliated with the Faith Tabernacle Congregation, which shuns medical treatment. The children, who attended the church’s school, had not been vaccinated. “

Philadelphia’s Measles Death Toll Rises

By the end of the 1991 Philly outbreak, 9 children were dead.

Back to New York, during a 2009 mumps outbreak in New York and New Jersey, even though many were vaccinated, “the outbreak primarily has affected members of a tradition-observant religious community.”

Are there any other examples?

Four children in Florida with a religious exemption developed measles in 2012 and although they didn’t get anyone at school sick, they did likely expose someone at an Orlando-area theme park who did later get sick.

Also in Florida, in 2013, in a charter school where 84% of kids had religious exemptions, 316 students developed pertussis, with attack rates of 57%!

What’s the usual attack rate for pertussis?

In another Florida outbreak in 2013, this one at a preschool, attack rates ranged from 23% for kids who were up-to-date on their pertussis vaccinations to 40% if they had fewer than three doses of a pertussis vaccine.

At the Asheville Waldorf School in North Carolina, at least 36 students got sick with chickenpox in 2018. The school had the highest rate of religious exemptions in the state.

And there was an outbreak in Alaska linked to religious exemptions.

“Among the 30 who were not vaccinated, 24 (80%) were eligible to be vaccinated (i.e., aged ≥ 12 months and born on or after January 1, 1957); of the 24 who were eligible to be vaccinated, all 12 school-aged children had religious exemptions, and two of nine children aged 1–4 years were siblings of these unvaccinated schoolchildren. Although no source case was identified, this outbreak coincided with a measles outbreak associated with the Seattle-Tacoma (Washington) airport, the major airport gateway to Juneau.”

Measles Outbreak Among School-Aged Children — Juneau, Alaska, 1996

Remember the last imported case of vaccine associated paralytic polio?

In 2005, an unvaccinated 22-year-old U.S. college student from Arizona became infected with polio vaccine virus while traveling in Costa Rica in a university-sponsored study-abroad program. She had never been vaccinated because she had a religious exemption.

How about the last cases of wild polio in the United States?

“The 1979 outbreak occurred in unvaccinated Amish persons living in Iowa, Missouri, Pennsylvania, and Wisconsin. Overall, 15 cases of illness caused by wild poliovirus type 1 occurred among U.S. citizens: all 10 paralytic cases occurred among unvaccinated Amish persons; three cases of transient paralysis occurred among unvaccinated Amish persons; and two nonparalytic cases occurred among unvaccinated members of the Mennonite church who were in frequent contact with Amish persons. Epidemiologic and virologic evidence indicated this outbreak resulted from importation of poliovirus from the Netherlands through Canada (Ontario), where outbreaks had occurred during 1978 in members of religious groups with objections to vaccination.”

Poliomyelitis — United States, Canada

It was in 1979.

It was among the Amish and may have been linked to religious exemptions, although many Amish got vaccinated to help eliminate the endemic spread of polio in the United States.

Before that, in 1972, there was an outbreak of paralytic polio at Daycroft, a Chris­tian Science boarding school in Greenwich, Connecticut. At least 12 students, all unvaccinated, were affected in the first polio epidemic in the US in seven years.

11 kids got paralytic polio at a Christian Science school in 1972.

Also among the Amish, an outbreak of rubella and congenital rubella syndrome in 1991, including 16 cases in New York.

“The outcome of pregnancy was determined for the 94 Amish mothers who reported illness or had serologic evidence of maternal rubella (Table 1). CRS occurred in 10 infants, all of whom were born to mothers who had histories of rubella-like illness in the first trimester; seven had possible manifestations of CRS; nine were miscarried/stillborn; and 68 infants appeared normal at birth. During the study period, medical personnel identified one additional infant with CRS from Lancaster County whose mother was a conservative Mennonite. “

Congenital Rubella Syndrome Among the Amish — Pennsylvania, 1991-1992

There have also been cases of tetanus among the Amish.

“In 1997 a 12-year-old Amish boy in Pennsylvania contracted tetanus. His medical bills were $600,000. The Amish community refused to apply for Medicaid because of their religious opposition to accepting government assistance and were able to pay only $60,000 of the bill.”

Some Outbreaks of Vaccine-Preventable Disease in Groups with Religious or Philosophical Exemptions to Vaccination

More recently, the measles outbreaks in New York occurred almost exclusively among completely unvaccinated children, including many school aged children.

“Persons who claim exemptions from immunizations for any reason may be at increased risk of contracting a VPD compared with immunized persons. In addition, persons who claim philosophical and/or religious exemptions (exemptors) may create some risk to the community because unvaccinated or undervaccinated persons may be a source of transmission.”

Salmon et al on Health Consequences of Religious and Philosophical Exemptions From Immunization Laws

Remember diphtheria?

You probably think that it has been a long, long time since a child has died from diphtheria in the United States, especially since we have had an effective vaccine for well over one hundred years.

Well, it has been a long time since anyone who was vaccinated has died…

Tragically, in 1982, a 9-year-old girl died after getting diphtheria at a Christian Science camp in Colorado.

Even more recently, an unvaccinated 4-year-old boy died in Massachusetts died with diphtheria. His mother was a Christian Scientist.

It should be very clear that kids with non-medical exemptions, including religious exemptions, are getting sick and are spreading disease.

We should have acted in 2007, instead of waiting for more and more kids to get sick in outbreaks, as non-medical exemptions to continued to increase.
We should have acted in 2007, instead of waiting for more and more kids to get sick in outbreaks, as non-medical exemptions to continued to increase.

Increasing in the post-Wakefield era, religious exemptions from immunizations put our kids at risk.

More on Kids With Religious Exemptions Spreading Disease

What Do We Know About the Rockland County Measles Outbreak?

Breaking News – there are 10 new cases in Rockland County, bringing the total in this ongoing outbreak to 225, as they institute new orders to quarantine anyone with measles or exposed to anyone with measles (see below

We know a lot about the measles outbreak in Rockland County, New York.

Nothing about what Del Bigtree and Sharyl Attkisson have been saying is right.
Did Del Bigtree or Sharyl Attkisson ever correct their false statements about the Rockland outbreak?

That makes it easy to spot anti-vaccine propaganda.

What Do We Know About the Rockland County Measles Outbreak?

What do we know?

We know that the outbreak is still growing.

And we know that most of the folks in the outbreak are unvaccinated.

10 new cases this week

What else do we know?

“At the end of September 2018, an international traveler arrived in Rockland County with a suspected case of the measles.”

Rockland County Measles Information

The outbreak is already the largest in New York State since the 1990s, before the endemic spread of measles was declared eliminated in the United States.

While it is unlikely to surpass the Ohio measles outbreak of 2014, which reached 384 cases, the Rockland County outbreak has already lasted longer.

In fact, this might will be one of the longer outbreaks is the longest outbreak we have had in a long while since the endemic spread of measles was eliminated in the US in 2000.

OutbreakCasesDuration
Brooklyn outbreak 2013583/13 to 6/9
Ohio outbreak 20143843/24 to 7/23
Disneyland outbreak 201514712/28 to 4/16
Minnesota outbreak 2017793/30 to 8/25
Rockland County outbreak 2018
2259/18 – ?
Brooklyn outbreak 201846610/18 – ?

The Minnesota outbreak of 2017 lasted nearly 5 months, but that includes the 42 days that they went measles-free.

Why 42 days? That’s equal to two incubation periods and if that much time has passed since the last person was infectious, there is little danger that there is still a missed case of measles in the community.

However, since there have been recent cases in Rockland County, we would be are now into the 6th month, mid-March, to get to that same point now.

Why has this outbreak been so hard to control?

“8 separate index cases, all with exposures to ongoing measles outbreak in Israel.”

Measles Review for Providers

Folks keep reintroducing measles into the community!

And immunization rates in the zip codes most affected by the outbreaks were as low as 54% at the start of the outbreak.

What else do we know?

Nine schools, now in compliance, were fined because they didn’t follow the Rockland County Health Commissioners order to keep unvaccinated and undervaccinated students out of school and provide immunization records and attendance records to the Rockland County Department of Health.

“ALL schools within the Village of New Square and any school with less than an 80% MMR vaccination rate within the geographical area affected by the measles outbreak (Spring Valley, Monsey) will be required to keep un- or under-vaccinated students home until 21 days have passed since the last confirmed measles case in Rockland.”

Health Department Announces Increased School Exclusions Due to Measles Outbreak

We don’t know why they aren’t quarantining all intentionally unvaccinated kids from school until the outbreak is over…

We do know that at least six people have been hospitalized in the Rockland County measles outbreak, including one child who ended up in the pediatric intensive care unit.

And we know that vaccines are safe and necessary! Get vaccinated and stop the outbreaks.

“Children 6 months through 11 months of age get an MMR vaccine now. Getting an MMR vaccine now will help give them some protection against measles. They will still have to get a vaccine at 12-15 months of age and again at 4-6 years of age.

Children 1 through 3 years of age who have already received their first MMR vaccine should get a second MMR vaccine now, as long as 28 days have passed since the first MMR vaccine was given to them. This second MMR vaccine will count for school entry.”

In fact, in Rockland County and other areas being hit with an outbreak, kids should get an early MMR, when they are six months old. And they can get their second dose early too, as early as 4 weeks after their first dose when they turn 12 months old.

Lastly, we know that you shouldn’t believe any of the anti-vaccine misinformation that is going around that might scare you away from vaccinating and protecting your kids. That’s why we have these outbreaks…

More on the The Rockland County Measles Outbreak

Updated May 8, 2019

Milestones Towards the Eradication of Polio

There is a lot more interest in polio these days, but not because we are close to eradicating this deadly disease, but rather because of the emergence of cases of acute flaccid myelitis (AFM).

Although the cases have a different cause, the symptoms of AFM are the same that we used to see during the outbreaks of polio that used to hit each summer in the pre-vaccine era.

Polio

Surprisingly, in most people, the poliovirus doesn’t actually cause any symptoms. They simply have an asymptomatic infection.

In some others, the poliovirus causes flu-like symptoms, including a fever, sore throat, nausea, and a headache – symptoms that last about 3 to 5 days.

Much more rarely, the poliovirus causes meningitis or paralysis.

It is these cases of paralytic polio that most people are aware of and that panicked parents during summers in the 1940s and 50s.

In addition to respiratory problems (think iron lungs), polio causes muscle atrophy.
In addition to respiratory problems (think iron lungs), polio causes muscle atrophy. (CC BY-NC 4.0)

After having flu-like symptoms, those kids who would develop paralytic polio can develop pain and then flaccid paralysis.

“The most severe form, paralytic poliomyelitis, which is seen in less than 1% of patients, presents as excruciating episodes of pain in back and lower limbs. In children, the disease may present in biphasic form—a period of prodrome followed by a brief symptom-free period of 7 to 10 days and then appearance of asymmetrical paralysis of limbs. Flaccid paralysis is the hallmark with loss of deep tendon reflexes eventually.”

Mehndirattta et al on Poliomyelitis Historical Facts, Epidemiology, and Current Challenges in Eradication

Of course, polio wasn’t always called polio.

Other names have included infantile spinal paralysis, infantile paralysis, Heine-Medin disease, poliomyelitis anterior acuta, and acute anterior poliomyelitis.

The first use of the name “polio” came from Adolph Kussmaul, with his use of the term poliomyelitis anterior acuta, which was derived from the Greek polios “grey” and myelos “marrow” and itis “inflammation.” It was because he knew that it was caused by inflammation of the spinal cord gray matter, even if he didn’t know why.

Polio History

Polio didn’t just suddenly appear in the middle of the 20th century though, it was likely around for ages.

That this Ancient Egyptian priest's leg is smaller than the other and he uses a staff to walk suggests that he could have had polio.
That one of this Ancient Egyptian priest’s legs is smaller than the other and he uses a staff to walk could suggest that he had polio.

In addition to an Egyptian funeral stele (a stone slab used as a monument) portraying Roma the Doorkeeper from 1500 BCE that suggests he had paralytic polio, archeologists have found evidence of polio in skeletons as far back as the Neolithic period.

A medical book from 1789 likely describes people with polio.
A medical book from 1789 likely describes people with polio.

Still, we don’t really know how long polio has been around and we don’t know why we began to see more cases in the mid-20th Century, although there are theories, including, ironically, about hygiene. While we often credit improved sanitation and hygiene for helping to reduce mortality from many diseases, some think that this actually set us up for polio outbreaks, as we were no longer exposed as infants, when we still had some maternal immunity.

The one thing that we do know is that we are on the verge of eradicating polio, as there are very cases now, in just a few countries.

Polio Timeline and Milestones

In addition to the more ancient discoveries about polio, there is a lot to learn about vaccines and vaccine-preventable diseases if we look at the major milestones of this important disease.

Although in the end it is a success story, the road to figuring out what caused polio symptoms and how polio could be prevented was very long.

  • Michael Underwood describes what is thought to be paralytic polio in his book A Treatise on the Diseases of Children, with General Directions for the Management of Infants from Birth  in a section on “Debility of the Lower Extremities” (1789)
  • first reported outbreak of polio in Worksop, England (1835)
  • Jacob von Heine, head of an orthopedic hospital in Germany, publishes a monograph that describes 29 cases of paralytic polio, and actually attributes the condition to inflammation of the anterior horns of the spinal cord, although the cause was still not known (1840)
  • first use of the term poliomyelitis by Adolph Kussmaul (1874)
  • Nils August Bergenholtz reports on an outbreak of paralytic polio in Sweden (1881)
  • Karl-Oskar Medin, a pediatrician who reported on a polio epidemic in Sweden (1887), later presents his findings at the Tenth International Conference in Berlin (1890)
  • the first major outbreak in the United States is documented in Rutland County, Vermont and causes 132 cases of paralysis and 18 deaths (1894)
  • Ivar Wickman tracks cases of polio during an epidemic in Sweden in 1905 and was the first to suggest that polio was contagious and that you could get it from “those afflicted with the abortive type” (1907)
  • although they don’t actually identify the poliovirus, Dr. Karl Landsteiner and Dr. Erwin Popper  identify that a virus causes polio when they inject material from the spinal cord of a child who had recently died with polio into the peritoneum of two monkeys, both of which soon developed paralytic polio (1908)
  • Simon Flexner, first discovers polio antibodies (1911), but unlike other researchers at the time, pushes the theory that polio was spread by the olfactory route, instead of the fecal-oral route, which was why we saw the development of nose sprays, etc., to try and prevent polio, none of which worked of course
  • a large polio epidemic in the United States causes at least 27,000 cases and 6,000 deaths (1916)
  • Philip Drinker and Louis Agassiz Shaw invent the first iron lung, the Drinker respirator (1929)
  • Frank M. Burnet and Jean Macnamara proposed that there were antigenically different strains of poliovirus (1931)
  • John R. Paul and James D. Trask help figure out how polio was spread by identifying the polio virus in human waste and sewage samples (1932)
  • Maurice Brodie and John Kolmer have unsuccessful field trials of early polio vaccines, including allergic reactions and vaccine induced polio because of poor attenuation (1935)
  • Sister Elizabeth Kenny establishes a clinic in Australia to treat polio survivors (1932) and later publishes her treatment recommendations, Infantile Paralysis and Cerebral Diplegia (1937)
  • the National Foundation for Infantile Paralysis is founded by FDR to stop polio (1937)
  • the first March of Dimes fundraisers to stop polio (1938)
  • Carl Kling found traces of the poliovirus in the Stockholm sewage system (1942)
  • the Sister Kenny Institute is built in Minneapolis, as her treatment methods become widely accepted after years of controversy (1942)
  • the U.S. Army Neurotropic Virus Commission, including Albert Sabin, gets a grant from the NFIP to study polio in North Africa (1943)
  • Isabel Morgan actually developed the first inactivated polio vaccine, but only tested it on monkeys (1949)
  • John Enders, with T. H. Weller and F. C. Robbins, received the Nobel Prize in 1954 for their work on the cultivation of the poliomyelitis viruses (1949)
  • David Bodian creates the monkey model using field isolates of poliovirus and with Jonas Salk, identifies the three poliovirus serotyes (1950s)
  • Hilary Koprowki develops the first oral, live polio vaccine, (1950) although Sabin’s vaccine eventually gets licensed because it is thought to be less neurovirulent in monkeys and undergoes more testing
  • there are 58,000 cases of paralytic polio in the United States (1952)
  • Renato Dulbecco, with Marguerite Vogt, successfully grows and purifies polio virus (1952)
  • the Polio Pioneers vaccine field trial, led by Thomas Francis Jr.,  that proves that Jonas Salk’s polio vaccine is safe and effective begins (1954)
  • Jonas Salk gets approval for his polio vaccine (1955)
  • improperly inactivated polio vaccine from Cutter Laboratories (Cutter Incident) causes 40,000 cases of polio, 200 cases of paralysis, and kills ten people (1955)
  • Albert Sabin develops the first live, oral polio vaccine, which replaced Jonas Salk’s inactivated polio vaccine (1961)
  • that polio survivors can develop new, late complications or post-polio syndrome begins to get reported (1969)
  • last endemic case of polio in the United States (1979)
  • the National Foundation for Infantile Paralysis officially changes its name to the March of Dimes Birth Defects Foundation (1979)
  • the World Health Assembly adopts a resolution for the worldwide eradication of polio by 2000 and the the Global Polio Eradication Initiative is launched (1988)
  • last imported case of polio in the United States (1993)
  • the WHO Region of the Americas is declared polio free (1994)
  • “last” case of VAPP that was acquired in the United States (1999)
  • last case of wild poliovirus type 2 (1999)
  • the WHO Western Pacific Region is declared polio free (2000)
  • the United States switches back to using the an inactivated polio vaccine because of concerns over VAPP (2000)
  • the WHO European Region is declared polio free (2002)
  • outbreak of vaccine derived polio among a group of unvaccinated Amish in Minnesota (2005)
  • last case of VAPP that was acquired outside the United States, an unvaccinated 22-year-old U.S. college student who became infected with polio vaccine virus while traveling in Costa Rica in a university-sponsored study-abroad program (2005)
  • last case of VAPP in the United States, a patient with a long-standing combined immunodeficiency who was probably infected in the late 1990s (2009)
  • last case of type 3 poliovirus (2012)
  • seasonal reports of acute flaccid myelitis in the late summer and early fall, which might be caused by a non-polio enterovirus, are reminiscent of polio epidemics in the early part of the 20th century (2014)
  • type 2 poliovirus eradicated (2015)
  • Bob Sears says that it is okay to delay the polio vaccine on his alternative vaccine schedule because “we don’t have polio in the United States” (2015)
  • a global switch from trivalent OPV to bivalent OPV in routine immunization programs (2016)
  • polio remains endemic in just two countries, Afghanistan and Pakistan (2018)

So it should be clear, that despite what some folks think, polio wasn’t conquered overnight. And Salk and Sabin obviously had a lot of help, although those are the names we most commonly hear connected with polio eradication.

“Until poliovirus transmission is interrupted in these countries, all countries remain at risk of importation of polio, especially vulnerable countries with weak public health and immunization services and travel or trade links to endemic countries.”

Global Polio Eradication Initiative on Endemic Countries

And to be clear, polio hasn’t yet been conquered.

There is still some work to do unless we want to see cases of polio and paralytic polio return.

That’s why it is important that you don’t skip your child’s vaccines, even for diseases that we don’t have in the United States anymore.

More on the History of Polio