Penurunan polio di AS dan secara global adalah akibat langsung dari pengenalan vaksin dan kesediaan masyarakat untuk menerimanya.
- Professor of Immunology and Microbiology, University of Colorado Anschutz
Health officials say the new case of polio in New York state and the presence of poliovirus in the municipal wastewater suggests that hundreds more could already be infected with the disease.
