Health

The CDC is discussing using the oral polio vaccine for the first time in 20 years to stop the New York outbreak

The CDC is discussing using the oral polio vaccine for the first time in 20 years to stop the New York outbreak

The Centers for Disease Control and Prevention is considering ending the use of the oral polio vaccine for the first time in more than 20 years. Outbreaks in the greater New York City metropolitan area That summer left an adult paralyzed.

“We are discussing the use of NOPV with our colleagues in New York State and New York City,” said Dr. Janelle Routh, CDC team leader for domestic polio. Novel oral polio vaccine.

“It will be a process. It’s not something we can pull the trigger on and have it appear overnight,” Routh told CNBC. “There will be a lot of thought and discussion about the reintroduction of the oral polio vaccine in the United States,” he said.

The New York State Department of Health, in a statement, said it is collaborating with the CDC on possible future options for responding to the outbreak.

US drug regulators pulled the oral vaccine off the shelves in 2000 because it contains a live – but weakened – strain of the virus that, in rare circumstances, can mutate into a deadly form that is infectious and potentially paralyzes people who haven’t been vaccinated.

Scientists believe this latest outbreak was caused by someone who was inoculated with the live virus overseas and started a chain of infections that eventually linked US sewage samples from New York to earlier samples from London and Jerusalem. It is unclear where the transmission originally originated.

Although the oral vaccine does not usually cause polio to paralyze people, it did because it was able to transform into a more deadly strain when it spread among unvaccinated people.

The United States currently uses an inactivated polio vaccine that is administered as a shot and contains a chemically killed virus that cannot replicate, mutate, or cause disease. Although New York state health officials began a vaccination campaign with inactivated polio shots, the vaccine did not stop the outbreak.

CDC formed a work group within its Committee of Independent Vaccine Advisors to develop criteria for when to use the novel oral polio vaccine to prevent current and possible future outbreaks in the New York City area. The work group met publicly for the first time on Wednesday and includes experts from New York.

“Since this outbreak happened in New York, it was determined that we had to revisit polio. It’s really that simple,” said Dr. Oliver Brooks, chairperson of the workgroup and chief medical officer of Watts Healthcare in Los Angeles.

The problem is that although the inactivated vaccine is highly effective in preventing paralysis, it does not stop transmission of the virus. Oral polio vaccine is highly effective at stopping transmission of the virus and is commonly used to suppress outbreaks.

The poliovirus strain currently circulating in the New York City metro area is mutated and genetically related to the Sabin type 2 strain used in an older version of the oral polio vaccine.

The US, if necessary, will use the novel oral polio vaccine, which is a safer and newer version that is more stable and carries a much lower risk of mutating into a strain of the virus that can spread to unvaccinated people and cause disease. Routh.

According to the Global Polio Eradication Initiative, the novel oral polio vaccine was developed to stop poliovirus outbreaks caused by less stable older versions of the vaccine. More than 450 million doses have been administered in 21 countries worldwide.

Any decision to use a novel oral polio vaccine requires Food and Drug Administration approval or emergency use approval. CNBC has reached out to the FDA for comment.

An unvaccinated adult in Rockland County, New York became paralyzed in June after contracting the poliovirus. It is the first known in the United States in nearly a decade, and the first in New York since 1990. So far there have been no further cases of paralysis, although New York state health officials have warned that unvaccinated people are at serious risk and should step up. Date their shot immediately.

The CDC considers a single case of paralytic polio a public health emergency. Most people who contract poliovirus don’t show symptoms, so when someone becomes paralyzed it’s an indication that the virus has spread widely and silently.

The New York State Department of Health has detected poliovirus in several counties in the New York City area since April and as recently as September. The virus was detected in 70 sewage samples from Rockland, Sullivan, Orange, Nassau, Kings and Queens counties.

The United States was declared polio-free in 1979.

New York Governor Cathy Hochul announced Emergency in September And Health Commissioner Dr. Mary Bassett declared the spread of poliovirus an imminent threat to public health.



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