The virus was discovered 10 years after the country was declared polio-free

The last case of polio was found in Nepal in 2010. Since then, Nepal was declared a polio-free country by the World Health Organization's South Asia region in 2014 due to the fact that no polio cases were found.

dr. Gautam speculated that the virus may have gone into the sewers from the feces of vaccinated children. One out of millions of children who receive live attenuated (live but inactivated) polio vaccine has a chance of mutating the virus in their intestines. This is vaccine derived polio virus type 3. It may have shown symptoms in the said child,' he said, 'if the child is infected, there is a risk of transmission from the said child, so we are doing surveillance on it now.' The surveillance team of the division is investigating whether Lulo's paralysis has been observed very quickly. "We have identified possible locations and are going to house to house inquiries. We are also understanding in hospitals,' he said, 'to control it, we are also conducting a vaccination campaign against polio in Kathmandu Valley from July 9 to 12.' Inspection has been started.

'The virus was found in the sample collected on June 13, we sent it to the laboratory in Bangkok for testing, the report of which was received on June 29,' he said, 'after that we have started the surveillance work to be done.' No virus was found in the sample. According to him, this type of virus may or may not cause infection.

health spokesperson Dr. According to Prakash Budhathoki, the government has been collecting samples twice a month from various places in Kathmandu since 2017 and once a month from Biratnagar, Pokhara and Janakpur outside the valley since 2022. According to him, among the three types of polio virus P1, P2 and P3, 'Vaccine Derived Polio Virus Type 3' was found.

In order to be declared a country where polio has been eradicated, the virus must not be seen in people and the environment for 10 years. It has not been seen in humans yet,' he said, 'We are doing more surveillance.' According to him, with the emergence of the virus, research is being done in consultation with the National Vaccine Advisory Committee and the National Certification Committee on Polio Disease Eradication.

Infectious disease specialist Dr. According to Anup Subedi, if the vaccine derived polio virus is found in the sewage sample of Kathmandu, it can be dangerous. According to him, there is a risk of re-spreading the mutated virus in people who have received the vaccine.

The disease caused by the polio virus is called poliomyelitis. Infection with this virus may not show normal or any symptoms in many, but there is a risk of paralysis or even death in some. Children below 5 years of age are especially at risk due to the polio virus. Polio virus is one of the most contagious diseases. This virus can spread from person to person.