A fourth dose of the Pfizer/BioNTech Covid-19 vaccine seems to offer short-lived protection against infection overall, but protection against severe illness did not wane for at least several weeks, a new study says
The study, published Tuesday in the New England Journal of Medicine, looked at the health records of more than 1.25 million vaccinated people in Israel who were 60 or older from January through March 2022, a time when the Omicron coronavirus variant was the dominant strain.
For confirmed infection,"a fourth dose appears to provide only short-term protection and a modest absolute benefit," the researchers wrote. But when it comes to severe infection, the fourth shot seems to help."Overall, these analyses provide evidence for the effectiveness of a fourth vaccine dose against severe illness caused by Omicron variant as compared with a third dose administered more than four months later," the study says.
Malaysia Latest News, Malaysia Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Covid-19: Six Covid-related deaths and 480 in hospitalThe total number of deaths linked to Covid-19 in NI since the start of the pandemic is 3,342.
Read more »
Covid-19: Four Covid-related deaths and 530 in hospitalThe total number of deaths linked to Covid-19 in NI since the start of the pandemic is 3,346.
Read more »
Philadelphia health officials closely monitor new COVID-19 variant, suggest masking indoorsPhiladelphia cases have increased more than 50% in the last 10 days with an average of 94 new cases per day.
Read more »
Medicare enrollees can get free COVID-19 home tests at more than a dozen retail pharmaciesMillions of seniors on Medicare can get up to eight free COVID-19 home tests each month from pharmacies at more than a dozen national and regional chain retailers.
Read more »
Amid rollback on COVID-19 mandates Bay Area sees uptick in cold, flu casesDr. Chin-Hong says UCSF is seeing an increase in influenza and common cold cases as less people are wearing masks and more people returning to work and a more 'normal' life.
Read more »