Concerns rise as more polio viruses are found in Quetta’s sewage samples
ISLAMABAD: Two additional sewage samples, this time from Quetta and Karachi, have tested positive for the presence of wild poliovirus type 1 (WPV1), raising concerns among health officials, Dawn reported. According to the Regional Reference Laboratory for Polio Eradication at the National Institutes of Health, these samples were genetically linked to the imported YB3A cluster … Read more