US study reveals The coronavirus vaccine is good at preventing serious illness. It is said to be 90% effective against Omikron.
On January 21, the AFP news agency reported that According to a real-life study from the US Centers for Disease Control and Prevention (CDC), the vaccine against COVID-19 And booster vaccines are still highly effective in preventing serious illness fromSLOTXOCOVID-19. Omicron species Based on the assessment of information obtained from field visits to the emergency department emergency clinic and hospitals in 10 states across the country more than 300,000 times between August 26, 2021 - January 5, 2022.

At a time when delta was the main epidemic strain. The vaccine's effectiveness against hospitalization was 90% after 14-179 days after the second dose, before dropping to 81% after more than 180 days after the second dose and increasing to 94%. at least 14 days after receiving the booster vaccine

During the time when the omikron was the main epidemic species The vaccine's efficacy in preventing hospitalization was estimated to be 81% 14-179 days after the second dose, before dropping to 57% after more than 180 days after the second dose and increasing to 57% after the second dose. 90% after 14 days of booster vaccination

A second CDC study, based on data from 25 states, found that the vaccine's efficacy in preventing infection dropped from 93% in the pre-delta outbreak to about 80% when the delta became the dominant epidemic strain. The efficacy of the vaccine against mortality remained stable at 94%, but the vaccine's efficacy in preventing infection was reduced to 68% when the omikron outbreak occurred.

The authors cannot estimate the efficacy in preventing death of the vaccine against omikron. due to delayed reporting But based on scientific predictions, the vaccine's efficacy in preventing death is still high.

The study also revealed that the number of full-dose deaths rose sharply during the Delta outbreak, reaching more than 20,000 in the July-November period. Those who were not vaccinated were 16 times more likely to die during the same period.

However, the protection efficacy was higher among those who had the booster shot. during the months of October - November People who were not vaccinated were 50 times more likely to die than those who received vaccines and boosters.