An epidemic of yellow fever is causing havoc in Angola. It has infected around 500 people and killed 198. There is no specific treatment for the disease. Prevention by mass vaccination is the best method to prevent mortality and morbidity. The vaccine gives almost life long immunity. It is cheap too , but there is a huge shortage of it. It seems another 1.5 million doses are required in Angola alone. There is also a fear that the disease may spread to other areas including populous regions in Asia where the vector, Aedes aegypti are abundant. Such a spread can be lethal as there will not be enough vaccines.