“New Study Shows COVID-19 Vaccines Provide Effective Protection Against Omicron Variant, But Effectiveness Rapidly Decreases Over Time: Systematic Review and Meta-Analysis of 40 Studies, Xinhua Reports”

2023-05-05 12:23:00

Los Angeles state news agency Xinhua reported on May 5 that the study, published this week in the medical journal JAMA Network, said: Vaccine against COVID-19 effective protection against mutated virus Omicron species rapidly decreasing over time

A systematic review and meta-analysis of secondary data. Based on the results of 40 studies, the effectiveness of vaccines against Omikron virus infection was estimated. Both laboratory-confirmed and symptomatic cases Less than 20% within 6 months after the initial vaccination series and less than 30% within 9 months after the booster vaccination.

Information-Image : XINHUA