Following an outbreak of yellow fever in Brazil last year with nearly 800 confirmed cases, scientists are closely monitoring the health of one harbinger of the virus: monkeys."The death of monkeys from yellow fever is the first warning,” says primatologist Jùlio Bicca-…

An uptick in yellow fever cases in Brazil, with the potential to spread to Brazilian cities, could pose a broader threat to the Americas.   In a perspective piece published yesterday, Catharine I. Paules, an NIH Infectious Diseases Fellow, and Anthony Fauci, director of the…

Brazil’s worst yellow fever outbreak since the 1940s started with monkeys dying in the forest.   “One of the proverbs is that ‘when the howler monkey falls silent, everyone starts to worry,’ because they know yellow fever is in the area,” says Anna Durbin, a professor at…

Brazilian authorities, still reeling from Zika-response, are struggling to address the worst outbreak of yellow fever in decades. The mosquito-borne illness, deadlier than Zika, is spreading leading to fears that the disease could jump from rural to urban mosquitos.  

The world narrowly missed a far greater disaster with this year’s yellow fever outbreak in Africa that exposed severe shortcomings on the vaccine supply side.   The outbreak, which ran from last December to September, ultimately resulted in less than 1,000 lab-confirmed…

West Africa’s yellow fever outbreak, while still serious, is not a public health emergency under WHO criteria, the organization concluded at its second emergency meeting on the issue yesterday. The decision followed a month with no new transmissions in Angola, where the…

Take a quick tour of the history of Yellow Fever, starting with its origins in African rain forests. Originally swapped back and forth between monkeys and mosquitoes, It probably made the leap to humans about 3,000 years ago. The yellow-fever carrying Aedes aegypti…

Vector control is a poor substitute for vaccines in a yellow fever outbreak, but despite 6,100 suspected yellow fever cases in Angola and the Congo—and 400 deaths—there’s been little else to show for the response so far.

Vector control is a poor substitute for vaccines in a yellow fever outbreak, but despite 6,100 suspected yellow fever cases in Angola and the Congo—and 400 deaths—there’s been little else to show for the response so far.

A lack of official diagnoses is hampering ongoing efforts to control a yellow fever outbreak in Angola and the Democratic Republic of Congo (DRC), amid concerns that 1 of the 100,000-plus Chinese expats working there could carry the disease home, sparking a global pandemic.