Another alert from WHO which we need to pay attention to, please read the whole article, excerpt :
" Situation
As of 19 July the Ministry of Health of Angola has reported 15 cases of wild poliovirus type 1 (WPV1) since the beginning of 2010, signalling an expansion of an ongoing outbreak. All of these cases have been detected since February in the capital Luanda or in provinces which were previously polio-free (Bie, Bengo, Huambo, Lunda Norte and Lunda Sul). One genetically-related case was detected in the Democratic Republic of the Congo (in Kasai Occidentale province, which borders Angola), with onset of paralysis on 25 May.
The country has had a persistent outbreak of poliovirus type 1 (WPV1) since 2007, where 8 cases were reported that year, and 29 cases each in 2008 and 2009.
Given the persistent and widespread transmission of wild poliovirus, ongoing sub-national surveillance gaps and recent further spread of WPV1 internationally, WHO considers as high the risk of further international spread into neighbouring countries. As per recommendations outlined in WHO's International Travel and Health recommendations, travellers to and from Angola should be fully protected by vaccination."
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