Poliomyelitis virus, illustration. Each viral particle is composed of a protein coat around a core containing RNA genetic material. This virus infects children and causes the disease poliomyelitis or infantile paralysis.
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The New York State Department of Health on Thursday confirmed a case of polio, the first known infection in the United States in nearly a decade.
A resident of Rockland County, a suburb of New York, has tested positive for polio, according to the state health department. The Centers for Disease Control and Prevention has confirmed the infection.
Health care providers should look for other polio cases, state health officials said. The chain of infection that culminated in the New York case is believed to have originated outside the United States. No cases of poliomyelitis have appeared in the United States since 1979, according to the CDC.
The strain of polio caught by the individual, known as Sabin virus revertant type 2, suggests the chain of infection began with someone who received the oral polio vaccine, according to the state health department. ‘State. The oral polio vaccine contains a mild strain of virus that is still able to replicate, which means people who receive it can pass the virus on to others.
The oral polio vaccine is no longer given in the United States, suggesting the chain of transmission began overseas, according to New York health officials. The United States uses an inactivated polio vaccine that is given by injection in the leg or arm. This vaccine uses a non-replicating viral strain so that people who receive it cannot transmit the virus to others.
The CDC recommends that all children get the polio vaccine. New York State requires all children to receive the vaccine before they start school.
Poliomyelitis is highly contagious and often begins with flu-like symptoms such as fatigue, fever, headache, muscle aches, vomiting and stiffness. Symptoms can take up to 30 days to develop, meaning people who haven’t gotten sick yet can still spread the virus to others.
In rare cases, poliomyelitis can cause paralysis and death. The virus caused widespread fear in the 1940s before vaccines became available, with more than 35,000 people becoming disabled by polio each year, according to the CDC. At the time, many parents were afraid to let their children play outside during the summer, when transmission was at its peak.
However, a successful national vaccination campaign in the 1950s through the 1960s drastically reduced the number of infections. The United States became polio-free in 1979.
The UK declared a national incident at the end of June after discovering polio in several sewage samples in London. Wastewater samples in the UK have tested positive for the virus strain used in vaccines.