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Last Updated : Aug 14, 2020 12:43 PM IST | Source: Moneycontrol.com

COVID-19 crisis | China claims chicken wings imported from Brazil test positive: Report

This is the first time a sample taken from the surface of chicken was tested and found to be coronavirus positive and up until now, all other reports of frozen foods testing positive were of imported seafood.

China has claimed that a sample of chicken wings imported from Brazil has tested positive for coronavirus, according to a Bloomberg report. The chicken was purchased from an Aurora Alimentos plant located in Santa Catarina.

The report notes that the administration of the Chinese city of Shenzhen has urged people to exercise caution while buying imported frozen food.

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This is the first time a sample taken from the surface of chicken was tested and found to be positive for the virus. Up until now, all other reports of frozen foods testing positive were those pertaining to imported seafood.

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How does a vaccine work?

A vaccine works by mimicking a natural infection. A vaccine not only induces immune response to protect people from any future COVID-19 infection, but also helps quickly build herd immunity to put an end to the pandemic. Herd immunity occurs when a sufficient percentage of a population becomes immune to a disease, making the spread of disease from person to person unlikely. The good news is that SARS-CoV-2 virus has been fairly stable, which increases the viability of a vaccine.

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There are broadly four types of vaccine — one, a vaccine based on the whole virus (this could be either inactivated, or an attenuated [weakened] virus vaccine); two, a non-replicating viral vector vaccine that uses a benign virus as vector that carries the antigen of SARS-CoV; three, nucleic-acid vaccines that have genetic material like DNA and RNA of antigens like spike protein given to a person, helping human cells decode genetic material and produce the vaccine; and four, protein subunit vaccine wherein the recombinant proteins of SARS-COV-2 along with an adjuvant (booster) is given as a vaccine.

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Vaccine development is a long, complex process. Unlike drugs that are given to people with a diseased, vaccines are given to healthy people and also vulnerable sections such as children, pregnant women and the elderly. So rigorous tests are compulsory. History says that the fastest time it took to develop a vaccine is five years, but it usually takes double or sometimes triple that time.

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However, people who came in physical contact with the meat or might have been exposed to it, were tested for coronavirus and their reports came back negative. Tests were also conducted on related products, all of which came back negative too, the local government reportedly revealed in a statement. However, the local authorities have asked consumers to be careful while buying any imported frozen foods.

Only two days back, three packaging samples of imported frozen seafood had reportedly tested positive for the virus in Yantai city. Meanwhile, in Wuhu city, the outside of an Ecuador frozen shrimp package had tested COVID-19 positive. Ecuador shrimp packaging was also found to be COVID-19 positive in Xi’an city.

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First Published on Aug 13, 2020 10:24 pm
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