In a family, the more people vaccinated, the lower the risk of infection and hospitalization.
- A total of 2.78 billion people are fully immunized.
- In France, 73.3% of the population is vaccinated.
- Nearly 5 million people have died from Covid-19 worldwide.
We already knew that vaccines against Covid-19 reduce the risk of infection and serious forms, but a new study has looked at the transmission of the virus within homes in vaccinated people. According to the authors, Swedish researchers, vaccination reduces the risk of transmission of the virus within families. Their results were published in JAMA Internal Medicine.
The more people vaccinated, the lower the risk
To reach this conclusion, the researchers analyzed data from more than 1.8 million people, from 800,000 families. This allowed them to assess the association between the number of people vaccinated against the virus and the risk of infection and hospitalization. They found that non-immune family members had a 45-97% lower risk of infection and hospitalization as the number of immunized household members increased. For the authors, this is further proof that the vaccine is not only an individual protective measure, but also has a collective impact, “especially within families, which is a high risk environment for transmission“, points out Peter Nordström, professor of geriatric medicine at Umeå University and co-author of the study.”It appears that vaccination not only helps reduce the individual’s risk of infection, but also reduces transmission, which not only minimizes the risk of more people becoming seriously ill, but also of new problematic variants emerging. and growadds Marcel Ballin, doctoral student in geriatric medicine at Umeå University and co-author of the study. Therefore, ensuring that many people are vaccinated has local, national and global implications..”
New proof of the effectiveness of vaccines
Since they were authorized, vaccines are always scrutinized. Recently, French researchers published the findings of a new study on the effects of vaccination. According to their results, it reduces the risk of hospitalization and death in people over 50 by 90%. This study is the largest conducted on this subject on a global scale: it covered more than 22 million people in France. Its authors point out, however, that the figures obtained are valid only for the five months following the second dose.
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