In the COVID-19 many scientists tried to test the old BCG vaccine against the coronavirus, but no effect was found. According to the study, the old vaccine is failing to protect against COVID-19.
As reported by The New York Times
What is the century-old vaccine BCG?
BCG Vaccine stands for Bacille Clamette-Guerin Vaccine. It was developed in the early 1990s and used for tuberculosis(TB) for a long time. But when it is injected it causes some bacteria effect, that will help to fight against the diseases.
Why is the BCG vaccine failing to protect against COVID-19?
BCG vaccine failed to protect against COVID-19, A study analyzed that the BCG vaccine was received by health workers and after analysis found it failed, due to the nonproduction of enough antibodies against COVID-19.
4 Reasons for BCG Vaccine Failure
There are several reasons why the BCG vaccine is failing to protect against COVID-19.
- BCG vaccine was specifically developed against TB and other infections, not for protection against COVID-19.
- BCG vaccine boosts the immune system that has no specific virus, while the COVID-19 vaccine was developed to target the specific virus.
- BCG vaccine is given to children for long-term protection against TB, but not effective in the older who have weak immune systems.
- BCG vaccine has been developed to trigger the immune system which is a different form from the immune response triggered by COVID-19.
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