In the spring, it was said that infection could hardly be avoided if one of the people who lived together in the house or apartment was infected with the corona virus. However, the risk of infection in this way has in the meantime been rated surprisingly differently, reports the “Süddeutsche Zeitung”.
Scientists have now published a large meta-analysis on the “Jama Network Open” specialist portal, which provides new findings. In their work, scientists working with Zachary Madewell and Natalie Dean from the University of Florida in Gainesville also show which factors contribute to increasing the risk of transmission.
To analyze 54 studies from around the world, the researchers evaluated data from a total of more than 77,000 participants. The scientists came to the conclusion: the average risk of transmission in the household is “only” 16.6 percent.
On the one hand, this is far less than was assumed in spring and summer. On the other hand, it is also well above the probability of contracting a roommate who is infected with the “old” Sars coronavirus or the Mers virus, according to the “Süddeutsche Zeitung”.
“Households are and will continue to be important places of infection, even if the possibilities of transmission to the public are restricted,” the authors write.
Why is it relatively easier to get infected in the household?
The reason for this is that there are three risks for transmission in one’s own household. The researchers call their own apartment a “3C environment”: the first “c” stands for “closed spaces”, the second for “crowd”, ie several people in a confined space. The third, finally, for “close contact with conversation” – a situation with close contact and conversations.
These are exactly the circumstances that usually make Christmas such a beautiful festival. Because this is where the family comes together, talks, celebrates, sings and possibly also argues, according to the “Süddeutsche Zeitung”.
The present evaluation by the scientists also showed that there are different risk categories within a household. Because of the greater proximity to one another, partners are more likely to get infected than other family members.
The scientists advise: “We must continue to think about suitable strategies for prevention. This can also include wearing masks at home, ventilating more often and better, and voluntarily isolating yourself. ”These recommendations would certainly reduce the risk of infection in one’s own household. It remains to be seen whether such tips will be followed in view of the upcoming holidays.