Yellow fever outbreaks in three African countries that have claimed nearly 300 deaths in Angola constitute an emergency situation, a senior World Health Organisation (WHO) official said on Tuesday in Geneva.
Sylvie Briand, WHO, Head of the Department of Pandemics and Epidemics said since the disease broke out in Angola in 2015, that 696 people are confirmed to have caught the virus and 293 have died.
The UN health agency has sent out letters to all its member states asking them to inform travellers about the outbreak.
“We are responding to this as an emergency,” she said.
Briand made it clear that WHO did not declare a global health emergency as it has done for the Ebola and Zika outbreaks.
“Angola’s capital Luanda and other urban centres in the country and in the Democratic Republic of Congo are among the hot spots.
“Disease outbreaks in urban centres are difficult to control, and cities are a possible transmission hub to other countries.
“Many people do not take outbreaks such as this one seriously and do not get vaccinations before they travel to affected countries,’’ Briand said.
She said that it is the right time to take the disease seriously.
In the Democratic Republic of Congo there have been 41 confirmed cases, 90 per cent of them imported from neighbouring Angola and the rest from a local outbreak. Another separate outbreak has resulted in 7 confirmed infections in Uganda.
“It is very concerning that there are three yellow fever outbreaks occurring at the same time”, Briand said.
The virus has also been exported from Angola to Kenya, which had recorded two cases as of last week, as well as China with 11 cases.
Yellow fever is not directly transmitted among humans, but through mosquitoes.
Luanda has been almost entirely vaccinated, but the vaccination campaign was conducted in a slow manner that allowed the virus to spread beyond the city, according to Briand.
Vaccinations are expected to start soon in Congo’s capital Kinshasa.
Briand warned that the vaccine is highly effective in people who get it, “but yellow fever has a high mortality rate if health agencies do not manage outbreaks well.’’
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