Tuberculosis vaccines could offer certain degree of immunity to COVID-19: Study

As research around COVID-19 vaccine continues, scientists have suggested that vaccines for Tuberculosis and Polio could offer a certain degree of immunity against dely infection. Researchers have found out that vaccine for tuberculosis popularly kwn as BCG (Bacillus Calmette-Guerin) could amp up body's immune system against an array of pathogens, possibly including  vel coronavirus.  insight has alrey kick-started trials for BCG vaccine across United States, Nerlands, and Australia.

Research suggests that vaccines are designed to teach immune system to build up a wall against particular pathogens. However,  memory stays in body for years to come and can sometimes activate or components of immune response to fight back alternate infections including respiratory diseases, as per researchers.

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According to Department of Microbial Pathogenesis and Immulogy at Texas A&M Health Science Center, BCG vaccine is only vaccine that can be given safely to masses amid pandemic scare.  Texas A&M Health Science Center  is currently leing a trial of tuberculosis vaccine.

insight regarding a TB vaccine being used to fight coronavirus came to light after a study comparing infections and death rates of countries to coronavirus data suggested that regions, where population was vaccinated for Tuberculosis, saw a lower death rate. 

Azra Raza, professor of medicine at Columbia University Medical Center, said that low death rates from coronavirus disease in Pakistan even amid soaring numbers could suggest something bigger since Pakistan's population is widely vaccinated with BCG. However, this research shows debatable differences. Brazil which has been one of worst-hit countries amid pandemic also has a population that widely uses BCG vaccine.

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China's inactivated vaccine succeeds in animal trial

Meanwhile, China's inactivated COVID-19 vaccine has shown potent protection against infection in animal experiments. According to international reports, research on vaccine 'candid77v ate BBIBP-CorV' is being conducted by Beijing Institute of Biological Products under China National Biotec Group, Chinese Centre for Disease Control and Prevention, Chinese Acemy of Medical Sciences, along with or institutions.

According to researchers, vaccine induces high-levels of neutralising antibodies that provide protection against virus in mice, rats, guinea pigs, rabbits, and n-human primates including cymolgus monkeys and rhesus macaques.

(With ncy inputs)

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