Based on the United Nations health agency, Angola may be the 17th, polio-free country to end up being reinfected since 2003 previously, when the virus began circulating broadly in Africa. A 10-month ban on vaccination in the northern state of Kano was initially blamed for the virus spreading across Africa, reaching Saudi Yemen and Arabia, but genetic analysis has shown it had been imported from another endemic region, India, rather than Nigeria. Based on the WHO, for July 29-31 in Angola a nationwide polio vaccination campaign is planned, where just 45 % of kids are estimated to be vaccinated.. After four years, Angola reports its first case of polio After four years, Angola has reported its first case of polio.Schieve says as demonstrated in earlier studies, boys are nearly four times more likely to have been identified as having autism than girls. The CDC says the surveys confirm that autism is a condition of major public wellness concern that affects many households, and supports prior estimates of autism, that have been based on regional surveys completed in Atlanta and NJ. Laura Schieve, an epidemiologist at the National Focus on Birth Defects and Developmental Disabilities who helped conduct the analysis said however it could not answer many queries about autism. The CDC experts emphasise that the full total results do not reflect on either the underlying causes of autism, or ongoing prevalence trends.