Congo Polio Strain Can Resist Vaccine
August 19, 2014
(Nature) – The cause of an unusually severe outbreak of poliomyelitis that hit Congo in 2010 has been identified: a strain of poliovirus that sometimes resists the immune responses mounted by vaccinated people. Fortunately, people who have recently received the live, oral polio vaccine, which provides the strongest immunity, are protected against the strain. Its spread in Congo was stopped by orally re-vaccinating the entire population of the surrounding areas.