COVID-19: BCG vaccine immunised people from heightened risk of Coronavirus, says study

Scientists have found that BCG vaccine, which was created to treat Tuberculosis, immuned people from getting ‘seriously ill’ during COVID-19 pandemic. For research, which was published in Cell, researchers compared two group of volunteers – one who h received BCG vaccine and ors who did t. As a result, y found that immunised individuals “did t get sick more often, or become more seriously ill” during ongoing COVID-19 pandemic.

'Did t have more symptoms' 

For purpose of research, researchers evaluated a group of healthy volunteers who received Bacillus Calmette–Guérin or BCG vaccine in five years before ongoing pandemic and compared ir immune system function to that of healthy volunteers who were t ministered shots, in Nerlands. As a result, y found that those people who have previously received BCG, did have “more symptoms”, did t get sick frequently or become more seriously ill, during first wave of COVID-19 pandemic.

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Meanwhile, US-based biotechlogy company, Moderna’s COVID-19 vaccine candidate has proven to protect mice from infection with vel coronavirus, also kwn as SARS-CoV-2. As per study published in rewned journal, Nature, on August 5, coronavirus vaccine candidate named mRNA-1273 induced both potent neutralizing antibody responses and prevents coronavirus infection in lungs as well as ses of mice without any evidence of immupathology. 

Moderna’s this vaccine candidate, that has previously shown positive results in monkeys, is w in Phase 3 of evaluation. mRNA-1273 was given to mice as two intramuscular injections of a one microgramme dose, at a difference of three weeks.

Furrmore, when se mice injected with two doses of COVID-19 vaccine candidate, were infected with vel coronavirus at least five or 13 weeks after second dose, viral replications did t take place in animals’ se and lungs. 

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Im credits: AP