October 4, 2022

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Covid-19 cases, mandates and reopening news: Live updates

Covid-19 cases, mandates and reopening news: Live updates
credit…Kriston Jay Bethel for The New York Times

Infants whose mothers received two doses of the mRNA virus vaccine during pregnancy are less likely to be hospitalized for Covid-19 in the first six months of life, According to a new study From the Centers for Disease Control and Prevention. Overall, the researchers found, vaccinating mothers was 61% effective in preventing infants from being hospitalized.

The study suggests that vaccination later in pregnancy – after the first 20 weeks – appears to provide better protection for infants than earlier vaccinations.

The new study is the first real-world epidemiological evidence that a mother’s vaccination can protect infants from Covid-19, likely because they are born with antibodies from their mothers.

“The bottom line is that vaccinating the mother is a really important way to help protect these young children,” said Dr. Dana Mini-Delman, head of the Infant Outcome Surveillance and Prevention Research Branch at the Centers for Disease Control and Prevention.

Center for Disease Control Pregnant women recommendBreastfeeding or trying to get pregnant Vaccine against Covid-19Which It can be dangerous for pregnant women and their children. Research has shown, for example, that the disease can increase the risk of a variety of pregnancy complications, including Premature birth and stillbirth.

Previous research on other diseases has indicated that women who are vaccinated against other pathogens during pregnancy can pass the antibodies to the fetus through the placenta, and Scientists have previously found signs That the same antibody transfer may occur after vaccination for Covid-19.

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The new study focused on babies under six months old who were admitted to one of 20 children’s hospitals in the United States between July 1 and January 17. the disease; All of these children tested positive for the virus. The results of the test of the remaining 203 children showed that they were not infected with the virus.

Among infants infected with Covid-19, 16 percent of mothers were vaccinated during pregnancy, compared to 32 percent of mothers of hospitalized babies without the virus.

The researchers found that vaccination during the first 20 weeks of pregnancy was 32 percent effective against hospitalization associated with Covid-19 for infants, while subsequent vaccination was 80 percent effective.

But due to the relatively small sample size, more research is needed to determine the optimal timing of vaccination during pregnancy and whether a booster during pregnancy may provide similar protection for infants whose mothers have already received the first set of vaccinations.

“For now, we want to make sure that we protect both the mother and the baby, and once a pregnant woman is ready to be vaccinated, we recommend going ahead and doing it,” Dr. Mini Delman said.

“Unfortunately, vaccinating children under the age of six months is not currently on the horizon,” she added.

The study was also not large enough to determine whether vaccinating mothers equally protected against Delta, which was the dominant variant when the study began, and Omicron, which had displaced Delta by the time the research ended.