Study Suggests Fetal Virus İnfection Possible, youtube mp3 indir
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Study suggests fetal virus infection possible
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A small study strengthens evidence that pregnant women infected with the coronavirus might be able to spread it to a fetus before birth.
Researchers from Italy said Thursday that they studied 31 women with COVID-19 who delivered babies in March and April and found signs of the virus in several samples of umbilical cord blood, the placenta and in one case, breast milk.
"We found some of the samples positive to the virus and it was blood drawn from the umbilical cord, meaning the blood of the baby, the blood of the fetus, and also other tissues like placenta, and also we found one sample of milk, which was positive," said the study leader, Dr. Claudio Fenizia, an immunology specialist at the University of Milan.
But it does merit more study, especially of women who became infected earlier in their pregnancies than these women did, researchers say ,when they presented the results at a medical conference being held online because of the pandemic.
Since its start, doctors have wondered whether in-the-womb infection could occur. HIV, Zika and some other viruses can infect a fetus this way, and several early reports from China suggested the coronavirus might, too, although doctors suspect those moms may have spread the virus during or after birth.
The new study involved women at three hospitals during the height of the outbreak in northern Italy. The virus's genetic material was found in one umbilical cord blood sample, two vaginal swabs and one breast milk sample. Researchers also found specific, anti-coronavirus antibodies in umbilical cord blood and in milk.
In one case, there's strong evidence suggesting that the newborn was born already positive because we found the virus in the umbilical cord blood and in the placenta.
In another case, a newborn had antibodies to the coronavirus that do not cross the placenta, so they did not come from the mother and were due to direct exposure of the fetus to the virus."
In any case, the possibility of fetal infection seems relatively rare, he said. Only two of the newborns tested positive for the coronavirus at birth and neither became ill from it.
"I'm sure it's too early to assess any risk with precision," said Feniziz
Dr. Ashley Roman, a pregnancy specialist at NYU Langone Health, said she and colleagues also detected viral particles on the fetal side of the placenta in several of the 11 cases they examined. The new report adds evidence that in-womb transmission is possible, but it seems rare and to not cause serious problems in the infants, she said.
"The most important thing that pregnant women need to know is it's important to socially distance. It's important to wear a mask, wash their hands. Women don't need to be cut off from society entirely, but they should be concerned about the impact of getting coded on their own health during pregnancy," Roman said.
UNICEF, the United Nations' children's agency, recommends that new moms with COVID-19 wear a mask while breastfeeding.
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