Effectiveness of the Covid vaccines against hospitalizations has waned over time, CDC says
Daily MailCOVID-19 vaccines have lost some of their effectiveness in preventing hospitalizations, data from the U.S. Centers for Disease Control and Prevention shows. Vaccine effectiveness in preventing hospitalizations has fallen as low as 75 percent, from a high of 95 percent that was first touted when the shots first became available in late 2020. Data from the CDC finds that the COVID-19 vaccines may have their effectiveness in preventing hospitalizations falls to only 75% over time. Moderna had an effectiveness of 76%, while Pfizer's vaccine was 42% effective While breakthrough cases became more common in July, the rate of hospitalization remained low, with both being more than 75 percent effective Both started at over 90 percent effectiveness when they first began distribution in December, meaning they either lost effectiveness over time or the variant was evading them in some way. Despite the increase in breakthrough cases, hospitalizations still remained low, and the Mayo Clinic found that both vaccines were more than 75 percent effective at preventing them.