Luanda - Great amount of rubbish near by the 
sanitary units reduced 40 per cent of the effectiveness of vaccination 
against poliomyelitis in the country, says the Health Minister, José 
Van-Dunem.
The official said so during the “Espaço Público programme of the Angolan state Public Television (TPA).
In addition, the minister said that this reduction was mainly recorded in areas whereas sanitation is unfavourable.
“To overcome this situation, rubbish must be rationalised by all the citizens”, he defended.