Wednesday January 22, 2020

FDA Gives Market Authorisation For Zika Diagnostic Test

A Zika diagnostic test developed by Washington University School of Medicine in St. Louis was newly granted market authorisation

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Zika, Virus, Test
Aedes aegypti mosquitoes are seen in a mosquito cage at a laboratory in Cucuta, Colombia,Feb. 11, 2016. VOA

A Zika diagnostic test developed by Washington University School of Medicine in St. Louis was newly granted market authorisation by the Food and Drug Administration (FDA).

According to a press release posted on the website of the university on Wednesday, using an antibody as well as other components to detect anti-Zika antibodies in the blood of people recently infected with the virus, the test can detect signs of Zika infection in serum samples within 12 weeks of infection, the Xinhua news agency reported.

Zika, Virus, Test
Scientists develop nanotechnology based test that detects Zika virus. Wikimedia Commons

The test is not meant to be used as a stand-alone proof of infection. The FDA recommends that the test be used only for people with symptoms of recent infection, as well as a history of living in or travelling to geographic regions where Zika circulates. Positive results should be confirmed in accordance with guidelines from the Centers for Disease Control and Prevention.

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Zika virus can cause babies to be born with devastating brain damage. But the signs of Zika infection in adults: rash, fever, headache and body aches, are nonspecific, so a pregnant woman who develops such symptoms can’t be sure if she has contracted Zika or something less risky for her fetus.

“This test, along with another that detects viral genetic material at very early stages of infection, will help women and their doctors make informed health-care decisions,” said Michael S. Diamond, a co-inventor of the technology that underlies the test and a professor of molecular microbiology and of pathology and immunology at Washington University.  (IANS)

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New Virus Can Spread Through Human Contact: China

China: Possible That New Virus Could Spread Between Humans

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CHINA-HEALTH-VIRUS
Security guards stand in front of the closed Huanan wholesale seafood market, where health authorities say a man who died from a respiratory illness had purchased goods from, in the city of Wuhan, Hubei province, China. VOA

The possibility that a new virus in central China could spread between humans cannot be ruled out, though the risk of transmission at the moment appears to be low, Chinese officials said Wednesday.

Forty-one people in the city of Wuhan have received a preliminary diagnosis of a novel coronavirus, a family of viruses that can cause both the common cold and more serious diseases. A 61-year-old man with severe underlying conditions died from the coronavirus on Saturday.

While preliminary investigations indicate that most of the patients had worked at or visited a particular seafood wholesale market, one woman may have contracted the virus from her husband, the Wuhan Municipal Health Commission said in a public notice.

CHINA-HEALTH-VIRUS
Commuters wear protection masks inside a subway train in Hong Kong, China. VOA

The commission said the husband, who fell ill first, worked at the Huanan Seafood Wholesale Market. Meanwhile, the wife said she hasn’t had any exposure to the market.

It’s possible that the husband brought home food from the market that then infected his wife, Hong Kong health official Chuang Shuk-kwan said at a news briefing. But because the wife did not exhibit symptoms until days after her husband, it’s also possible that he infected her.

Chuang and other Hong Kong health officials spoke to reporters Wednesday following a trip to Wuhan, where mainland Chinese authorities briefed them on the outbreak.

The threat of human-to-human transmission remains low, Chuang said, as hundreds of people, including medical professionals, have been in close contact with infected individuals and have not been infected themselves.

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She echoed Wuhan authorities’ assertion that there remains no definitive evidence of human-to-human transmission.

The outbreak in Wuhan has raised the specter of SARS, or severe acute respiratory syndrome. SARS is a type of coronavirus that first struck southern China in late 2002. It then spread to more than two dozen countries, killing nearly 800 people. (VOA)