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Anti-malaria drug prevents coronavirus infection

By Xinhua | February 6th 2020 at 12:14:55 GMT +0300

Filipino Catholics attend a mass wearing protective masks following confirmed cases of coronavirus in the country, at the National Shrine of Our Mother of Perpetual Help, Paranaque City, Metro Manila, Philippines, yesterday. [Reuters]

Chinese researchers have found that anti-malaria drug chloroquine can effectively inhibit the novel coronavirus infection in vitro.

Researchers from the Wuhan Institute of Virology under the Chinese Academy of Sciences and the Beijing Institute of Pharmacology and Toxicology reported in the journal Cell Research that they evaluated the antiviral efficiency of seven drugs in vitro.

Chloroquine, a widely used anti-malaria and autoimmune disease drug, has been known to block virus infections by changing the acidity and basicity value inside the cell and interfering with receptors of SARS coronavirus.

In the latest study, chloroquine shows an antiviral effect at both the entry and post-entry stages of the novel coronavirus infection in Vero E6 cells. Vero E6 cells, derived from the kidney of an African green monkey, are one of the commonly used mammalian cell lines in microbiology and molecular and cell biology research.

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Chloroquine also shows immune-modulating activity in the study, which may enhance its antiviral effect in vivo. Meanwhile, chloroquine is widely distributed in the whole body, including the lungs, after oral administration, the researchers noted.

They said chloroquine is a cheap and safe drug that has been used for more than 70 years and it is potentially clinically applicable against the novel coronavirus. Sun Yanrong, deputy director of the China National Centre for Biotechnology Development, confirmed chloroquine's effect in inhibiting novel coronavirus infection at a press conference held by the National Health Commission on Tuesday.

Chloroquine and some other antiviral drugs, as well as some traditional Chinese medicines that contain active antiviral ingredients, have been selected as drug candidates for further animal experiments and clinical trials.

Meanwhile, test results show that 10 people on a cruise ship quarantined off the coast in Japan are infected with the virus, the Japanese health minister said yesterday.

After an 80-year-old passenger from Hong Kong was found to be infected with the pneumonia-causing virus, the ship, the Diamond Princess, has been kept in quarantine off the port of Yokohama, a city south of Tokyo.

Coronovirus Coronavirus Coronavirus outbreak Chloroquine
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