By Donald G. McNeill Jr. Nigeria is fighting an unusual outbreak of polio caused by a mutating polio vaccine, world health authorities say, but the only remedy is to keep vaccinating children there. Officials of the World Health Organization fear that news of the outbreak, which began last year, will be a new setback for […]
Polio Outbreak From Oral Vaccine Identified — And Controlled — In China
ScienceDaily (Aug. 15, 2006) — A 2004 outbreak of polio in China traced back to live attenuated oral polio vaccine (OPV), which is widely used in global eradication efforts, highlights the small but significant risk to eradication posed by the use of OPV at suboptimal rates of coverage. The study, reported in the Sept. 1 […]
