About My Health Careers Internship MedBlogs Contact us

Yellow Fever Vaccination Campaigns Commence in Brazil

by Bidita Debnath on January 28, 2018 at 11:35 PM
Font : A-A+

Yellow Fever Vaccination Campaigns Commence in Brazil

Yellow fever is a potentially deadly viral hemorrhagic disease transmitted by infected mosquitoes and its vaccine provides up to 99% lifetime immunity. The US Embassy and the Centers for Disease Control and prevention (CDC) issued a health alert for travellers visiting the cities of Rio de Janeiro, São Paulo and the Brazilian states of Espírito Santo and Bahia.

"Anyone 9 months or older who travels to or lives in these areas should be vaccinated against yellow fever," the CDC alert said.


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.

Yellow fever spreads to humans through the bite of an infected mosquito, and outbreaks usually occur in tropical regions, mainly in South America and Africa. Hundreds of monkeys died in the Atlantic rain forest in the states of Rio de Janeiro, Espirito Santo and Sao Paulo last year indicating that the fever was back in Brazil. Symptoms of yellow fever usually begin three to six days after a bite and last about three or four days. They are similar to the flu and could become severe to include fever, headache, muscle pain, nausea, vomiting, fatigue and jaundice — hence its name yellow fever.

According to WHO the mass immunization campaign launched in Brazil has begun delivering fractional doses of yellow fever to nearly 24 million people in Rio de Janeiro and Sao Paulo. When there is a short supply of vaccines, fractional dosing (a short term effective strategy) can extend vaccine supplies to more people who can be protected from the spread of the disease.

A full dose of vaccine can provide life-long protection against yellow fever. One-fifth of the regular full dose can provide immunity against the disease for at least 12 months, maybe even longer.

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."

Source: Medindia

News A-Z
News Category
What's New on Medindia
Printed Temperature Sensors help with Continuous Temperature Monitoring
Health Benefits of Giloy
Breast Cancer Awareness Month 2021 - It's time to RISE
View all

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Yellow Fever Febrile Fits / Febrile Convulsions Q Fever Fever Sick Building Syndrome Zika Fever Top 10 Vaccine Myths Debunked Traveling with Children Abroad? - Parents, Stay Alert! 

Recommended Reading
New Pathway That Controls Yellow Fever Infection
Type III interferon-mediated signaling preserves the integrity of the blood brain barrier and ......
Novel Technique That Tracks Yellow Fever Virus Replication
To explore how viruses interact with their hosts, researchers adapted a technique that detects RNA ....
WHO Declares End to Yellow Fever Outbreak in Congo, Angola
Yellow fever outbreak, which was first detected in Angola in December 2015, had caused 965 ......
Yellow Fever Vaccine Campaign Launched in Angola, DR Congo
The World Health Organization has urged vaccination of all travellers to and from Angola and DR ......
Febrile Fits / Febrile Convulsions
High fever in kids can cause convulsions and are called febrile fits that do not include the seizure...
Fever or Pyrexia is an elevation in normal body temperature. Causes of fever include infections, inj...
Q Fever
Q Fever takes its origin from word “query” and is caused by bacteria Coxiella burnetii that infects ...
Sick Building Syndrome
Sick Building Syndrome is a condition that presents with a set of symptoms (like fatigue, nausea, he...
Top 10 Vaccine Myths Debunked
Childhood vaccination has saved many lives, yet lots more has to be done to increase awareness and e...
Traveling with Children Abroad? - Parents, Stay Alert!
Traveling with children is always challenging as it involves careful planning. Here are some precaut...
Yellow Fever
Yellow fever is a hemorrhagic fever that is transmitted by infected mosquitoes and it can lead to li...
Zika Fever
Zika virus is transmitted to humans by infected mosquitoes which causes mild fever with maculopapula...

Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

© All Rights Reserved 1997 - 2021

This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use