Email
Password
Remember meForgot password?
    Log in with Twitter

New CDC test for dengue approved

blog:17936:1::0
By Tim Sandle
Posted Aug 9, 2012 in Science
The US Centers for Disease Control and Prevention has developed a new diagnostic test to detect the presence of dengue virus in people with symptoms of dengue fever or dengue hemorrhagic fever. The test, called the CDC DENV-1-4 Real Time RT PCR Assay, has been authorized by the Food and Drug Administration for use in the United States and can be performed using equipment and supplies many public health laboratories already use to diagnose influenza.
The new test will help diagnose dengue within the first seven days after symptoms of the illness appear, which is when most people are likely to see a health care professional and the dengue virus is likely to be present in their blood. The test can identify all four dengue virus types.
This is the first FDA-approved molecular test for dengue that detects evidence of the virus itself. The other available FDA-approved test detects a certain type of antibody (immunoglobin M (IgM) class antibodies) to dengue virus. Most patients begin to develop these antibodies four days after they become ill. However, because not everyone develops these antibodies until seven days after they get sick, the antibody test might not recognize dengue early in a patient’s illness.
Dengue is caused by any of four dengue viruses, which are transmitted by Aedesmosquitoes. Dengue is a major public health problem in the tropics and subtropics, which includes Puerto Rico and the U.S. Virgin Islands, where thousands of U.S. citizens develop dengue every year. Dengue is leading cause of fever in travelers returning from Asia, the Caribbean and Latin America. Transmission has occasionally occurred in the continental United States in areas where Aedes mosquitoes are found.
Symptoms of dengue include high fever, severe headache, severe pain behind the eyes, joint pain, muscle and bone pain, rash and mild bleeding involving the nose or gums, and easy bruising. Severe infections can result in hemorrhage, shock, and death.
For further details, see the CDC.

blog:17936:1::0
More about Dengue, Mosquito, Fever
Latest News
Top News