MOSCOW, March 2 – RIA Novosti. Swedish scientists first found a mutation of the SARS-CoV-2 coronavirus in a newborn baby whose mother was sick with COVID-19, writes The Conversation.
The pregnant woman was taken to Malmö hospital with severe abdominal pain. The child had an abnormally low heart rate, which indicated an oxygen deficiency. The woman underwent a cesarean section and was tested for coronavirus. He showed a positive result for both the mother and the child. The genomes of the virus were sequenced, and it was found that the child had been infected before birth.
The first tests showed that the viruses in the mother and the baby were identical, but after a few days, doctors detected changes in the infection population in the newborn. He turned out to have a new strain, different from the original. “This is the first case of genetic modification of the coronavirus in the unique conditions of transmission from mother to fetus before birth,” said scientist, obstetrician-gynecologist at Lund University Hospital Mehren Zaygam.
She noted that virus mutations are quite common, but stressed that a new strain, named A107G, was formed just five days after the baby was born. Zaygam suggests that the change in the virus could have been caused by the newborn's contact with the external environment after being removed from the womb.
The physician noted that the virus damaged the mother's placenta: it was inflamed, and the coronavirus protein was found on both sides.
The mother easily tolerated the virus, she was discharged four days after giving birth, but the baby needed neonatal care as he was born prematurely. But he developed antibodies and the disease went away without serious symptoms. Moreover, it turned out that the protection was provided by the child's immune system, since no antibodies were found in the woman's breast milk.
More than 113 million people are infected with the coronavirus in the world, over 2.5 million have died. Most infected and victims in the United States, India and Brazil. The spread of the coronavirus