There was no heartbreaking news about Pfizer Wax. The Financial Times Four months after the second vaccination, Pfizer’s efficacy was halved, according to a study by the University of Oxford, one of the world’s most prestigious educational institutions.

The study looked at seven million British patients and already counted the delta variant. Anyone who received the second Pfizer vaccine will have their protection reduced to ninety percent after one month. It drops to 85 per cent in the second month and 78 per cent in the third month. However, after five months, Pfizer, like AstraZeneca, offers only fifty percent protection.

The study also points out that individuals who have been vaccinated with the MRNA vaccine, i.e. those who have been vaccinated with Pfizer and Modona, may need a booster vaccine to ensure that they are protected from the Delta variant.

Before that we wrote a Guardian article Research According to the Delta variant, people who have been vaccinated have the same number of people who have not been vaccinated. Researchers say Pfizer is 15 percent more effective with the Delta variant than the AstraZeneca. However, protection begins to decline more slowly than later. Five to six months after administration, the standard of care is approximately the same.