The fight against vaccination against the corona continues around the world.Two-dose vaccines are still offered in most countries.
However, the booster dose is given as the effectiveness of the vaccine decreases after a few days.However, a recent study revealed that this booster dose also works for a few days.
The U.S.Centers for Disease Control and Prevention says the third-dose effect of Pfizer and modern vaccines in the United States has been declining for the past four months.Between August 26 last year and January 22 this year, 2.41 lakh people were infected with Covid.
The report also collects information from more than 93,000 patients admitted to hospitals where the condition is alarming.
The effectiveness of the vaccine was assessed by comparing Covid ‘positive results and taking into account area, age, morbidity and other factors.
According to this study, the effect on Omicron after the third dose was 91% in the first two months.
By the fourth month it had fallen to 78 per cent.This results in a gradual decrease in the booster effect.
It has already been suggested that citizens in the United States may need to take a fourth dose as part of the fight against Omicron.With the latest CDC study, the focus has once again shifted to quadrupeds.
