Yellow Fever News and Research

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Yellow fever virus, a flavivirus, is transmitted to humans through the bite of infected mosquitoes. Illness ranges in severity from a self-limited febrile illness to severe hepatitis and hemorrhagic fever. Yellow fever disease is diagnosed based on symptoms, physical findings, laboratory testing, and the possibility of exposure to infected mosquitoes. There is no specific treatment for yellow fever; care is based on symptoms. Steps to prevent yellow fever include use of insect repellent, protective clothing, and vaccination. Yellow fever occurs in tropical regions of Africa and in parts of South America. Yellow fever is a very rare cause of illness in U.S. travelers. The last epidemic of yellow fever in North America occurred in New Orleans in 1905.

First draft of the genome sequence of Aedes aegypti mosquito

Developing new strategies to prevent and control yellow fever and dengue fever has become more possible with the completion of the first draft of the genome sequence of Aedes aegypti mosquito by scientists led by Vishvanath Nene at The Institute for Genomic Research (TIGR) and David Severson at the University of Notre Dame.

18 May 2007

Vaccination week in the Americas

The countries of the Americas are preparing a huge promotional effort for the fifth year of Vaccination Week in the Americas, which this year aims to immunize some 55 million persons.

18 Apr 2007

GAVI Alliance brings immunisation rates to record highs in poor countries

New data from the World Health Organization (WHO) show that the GAVI Alliance, a groundbreaking global initiative to increase access to children's vaccines, has brought immunisation rates to record highs in poor countries.

28 Jan 2007

Global resurgence in zoonotic viral diseases

Doctors and veterinarians need to work together to tackle the increasing global threat of zoonotic viral diseases spread by non-human vertebrate hosts - including dogs, cattle, chickens and mosquitoes - according to a review in the November issue of Journal of Internal Medicine.

8 Nov 2006

Yellow fever and Poliomyelitis outbreaks in Africa

Yellow fever in Ivory Coast - On 5 October 2006, the Ministry of Health reported 2 cases of yellow fever in the towns of Korhogo and Ouaragahio in Ivory Coast.

19 Oct 2006

Several factors are contributing to an increase in dengue epidemics

Scientists have long known that epidemics of dengue fever wax and wane over a period of several years, but they've never been quite sure why.

7 Aug 2006

West Nile virus DNA vaccine shows promise in phase 1 trial

Vical Incorporated has announced that in a Phase 1 clinical trial, a West Nile virus (WNV) vaccine candidate administered using Vical's proprietary DNA delivery technology was safe and well tolerated

5 Jun 2006

Nepalese Rhesus monkeys may provide new alternative for HIV/AIDS research

Rhesus monkeys in Nepal may provide a suitable alternative to alleviate a critical shortage of laboratory animals used in work to develop vaccines against diseases such as HIV/AIDS.

1 Jun 2006

Purdue biologists visualize protein interaction that may initiate viral infection

Biologists at Purdue University have taken a "snapshot" of a Velcro-like protein on a cell's surface just after it attached to the dengue virus, a linkup thought to initiate the early stages of infection.

16 Feb 2006

New web resource provides easy access to global health data

GlobalHealthFacts.org - a new and freely available website with the latest country and region-specific data on HIV/AIDS, tuberculosis, malaria and other key health indicators - was launched today by the Kaiser Family Foundation, a non-profit, private operating foundation focused on health care issues.

10 Jan 2006

Passenger and crew lists on demand will protect America from disease say US health officials

U.S. health officials, using the excuse that they need to protect Americans from bird flu and other diseases, are proposing regulations that will require airlines and shipping firms to hand over passenger and crew lists on demand and expand how they report serious illnesses.

24 Nov 2005

Harvard study finds vaccines boost economies of poor countries

Immunization programs in impoverished countries not only save lives, they boost economies, finds a study by researchers with the Harvard School of Public Health (HSPH) published in the current edition of World Economics.

16 Oct 2005

Flaviviruses immune system defenses in different ways depending on whether they are transmitted by mosquitoes or ticks

"Flaviviruses exact an enormous toll in terms of illness and death worldwide," notes NIAID Director Anthony S. Fauci, M.D. "Because this is a relatively new field of study, everything we learn about how these viruses operate is significant.

28 Sep 2005

Vaccine against Lassa fever works in monkeys

Scientists say that a genetically engineered virus may possibly offer the first effective vaccine against Lassa fever.

28 Jun 2005

Findings may help scientists improve the existing vaccine for yellow fever

In one of the first molecular studies of the human antibody response to yellow fever, Howard Hughes Medical Institute (HHMI) researchers and their colleagues have found the crucial bit of virus that people's immune systems need to spot and quash this often-fatal re-emerging disease.

16 Jun 2005

New WHO rules mean countries could face quarantine in bid to beat killer epidemics

Under new rules agreed by the World Health Organisation yesterday (WHO), serious outbreaks of deadly diseases such as bird flu and SARS could mean travel and trade restrictions could be placed on many countries.

24 May 2005

New regulations to tackle disease outbreaks given the red light by the WHO

The recent outbreaks of communicable diseases such as SARS and avian flu in particular, have prompted the United Nations health agency’s policy-making body to adopt a new set of regulations concerning responses from Governments and international bodies when new diseases emerge and old ones reappear.

23 May 2005

New set of International Health Regulations to manage public health emergencies of international concern

Today, the World Health Assembly approved a new set of International Health Regulations to manage public health emergencies of international concern. The new rules will "prevent, protect against, control and provide a public health response to the international spread of disease."

23 May 2005

Experimental vaccine targeting West Nile virus

A small trial testing the safety of an experimental vaccine targeting West Nile virus (WNV) opened today at the National Institutes of Health's (NIH) Clinical Center in Bethesda, MD.

19 Apr 2005

PAHO vaccines books wins major award

The Pan American Health Organization’s publication, Vaccines: Preventing Disease and Protecting Health, has won an award from the Association of American Publishers in the medical science category.

9 Feb 2005