Genomic sequencing of poliovirus shows links to Afghanistan
ISLAMABAD: The genomic sequencing of the only poliovirus, detected from the sewage water in Pakistan during the current year, shows that the virus belongs to Nangarhar province of Afghanistan. The Type-1 Wild Poliovirus (WPV1) in an environmental sample was detected in Lahore district (Gulshan Ravi, ES site) during the current month. The genomic sequencing is a process to decipher the genetic material found in an organism or virus. Sequences from specimens can be compared to help scientists track the spread of the virus, how it is changing and how those changes may affect the public health. In first week of January environmental samples were collected from 38 cities of Pakistan. Of these samples, 37 were found negative at the National Institute of Health (NIH). The cities declared negative for presence of the virus included Bannu, Dera Ismail Khan, Peshawar, Islamabad, Rawalpindi, Sialkot, Qilla Abdullah, Quetta, Karachi and Southern KP region. The sewage samples are important in d