Yellow Fever

waltky · Jan 17, 2018

Brazilian state at risk for yellow fever...

WHO: All of Sao Paulo State at Risk for Yellow Fever
January 16, 2018 — The World Health Organization has added all of Sao Paulo state to its list of areas at risk for yellow fever.

That puts the megacity of Sao Paulo on the list and means that the organization is recommending that all international visitors to the state be vaccinated.

A nurse vaccinates a toddler against yellow fever at a public health clinic in Rio de Janeiro, Brazil

Tuesday's announcement comes as an outbreak is gathering steam in Brazil ahead of Carnival, a major draw for foreign tourists. The WHO says 11 human cases have been confirmed through last week and hundreds more found in monkeys.

Much of Brazil is considered at risk for yellow fever, but the coast was largely considered safe. Last year, however, Brazil saw an unusually large outbreak of the disease, including in areas not previously at risk. In response, Brazil rushed to vaccinate millions of people.

https://www.voanews.com/a/who-says-all-of-sao-paulo-state-at-risk-for-yellow-fever/4209875.html
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waltky · Jan 23, 2018

Yellow Fever death toll triples in Brazil...

WHO: Brazil's Death Toll From Yellow Fever Triples
January 22, 2018 — The number of confirmed cases of yellow fever outbreak in Brazil has tripled in recent weeks, with 20 deaths since July, the World Health Organization (WHO) said on Monday.

Of 35 confirmed cases, 20 were in Sao Paulo state, which includes South America's largest city, Sao Paulo. Earlier this month, a case of the disease was confirmed in the Netherlands for a traveler who had recently been in that state. The WHO recommended last week that foreign travelers get vaccinated before visiting.

But Brazil's Health Ministry has said the recommendation, coming just weeks before Carnival, a holiday event in which tens of thousands of tourists descend on Brazil, would not cause it to change its advisory that only travelers going to rural areas be vaccinated.

A banner explaining how the yellow fever is transmitted hangs at the entrance of a park in Sao Paulo, Brazil, Jan. 16, 2018. The World Health Organization says 35 human cases have been confirmed and hundreds more found in monkeys.

Last week, Brazilians lined up for hours to get yellow fever vaccinations in the country's largest states, alarmed by the increase in the number of fatal cases of infection and a warning from the WHO to tourists visiting parts of the country.

Yellow fever is a viral disease transmitted by mosquitoes in tropical regions and is still a major killer in Africa. It had largely been brought under control in the Americas. The first sign that the fever was back in Brazil was the death last year of hundreds of monkeys in the Atlantic rain forest in the states of Rio de Janeiro, Espirito Santo and Sao Paulo.

https://www.voanews.com/a/who-brazil-death-toll-from-yellow-fever-triples/4219776.html
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waltky · Jan 28, 2018

Mass Yellow Fever Vaccination Campaign Under Way in Brazil, Nigeria...

Mass Yellow Fever Vaccination Under Way in Brazil, Nigeria
January 26, 2018 — Two of the largest mass vaccination campaigns against yellow fever ever seen in the world have begun in Nigeria and Brazil. Both campaigns, which are supported by the World Health Organization, aim to prevent the spread of the disease.

Nigeria plans to vaccinate more than 25 million people throughout the coming year, making this the largest yellow fever campaign in the country's history. In preparation, the World Health Organization has trained thousands of health care workers on how to administer the vaccine. The WHO says nearly 3,000 vaccination teams are being deployed across the states of Kogi, Kwara, Zamfara and Borno. In the case of Borno State, it says the campaign will focus on camps for internally displaced people and host communities.

WHO spokesman Tarik Jasarevic says the goal of the campaign is to reduce yellow fever transmission by achieving 90 percent coverage in those states. "It is a part of an initiative to eliminate yellow fever epidemics," he said. "As you know, we cannot … eradicate the yellow fever virus because it is being transmitted by mosquitoes. But, with the effective vaccine that exists for a number of years now, it can be prevented. So, mass vaccination is the best way to prevent outbreaks of yellow fever."

A boy cries as he receives a vaccine against yellow fever at a public health center in Sao Paulo, Brazil

The WHO reports the mass immunization campaign launched in Brazil will deliver so-called fractional doses of yellow fever to nearly 24 million people in Rio de Janeiro and Sao Paulo. Fractional dosing is a way of extending vaccine supplies so more people are protected from the spread of the disease.

A full dose of vaccine provides life-long protection against yellow fever. One-fifth of the regular dose confers immunity against the disease for at least 12 months and possibly longer. That is considered an effective short-term strategy in places where the vaccine is in short supply.

https://www.voanews.com/a/mass-yellow-fever-vaccination-under-way--brazil-nigeria/4226489.html
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waltky · Mar 21, 2018

Brazil gonna Vaccinate Entire Country Against Yellow Fever...

Brazil to Vaccinate Entire Country Against Yellow Fever
March 20, 2018 — Brazil's health minister says the country is expanding its campaign to vaccinate people against yellow fever to cover the entire country.

Ricardo Barros says that by including the final four of Brazil's 27 states, nearly 78 million people will have been vaccinated by 2019.

A boy cries as he receives a vaccine against yellow fever at a public health center in Sao Paulo, Brazil

Barros told a news conference Tuesday that 920 cases of yellow fever have been reported nationwide since July 2017 and 300 people have died from the disease. During the same period last year, 610 cases and 196 deaths were reported.

U.S. health officials last week warned travelers to stay away from certain areas of Brazil if they haven't been vaccinated against yellow fever. The virus can be spread by the same mosquito that transmits other tropical diseases, including Zika and dengue.

https://www.voanews.com/a/brazil-to-vaccinate-entire-country-against-yellow-fever-/4308163.html
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Yellow Fever

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