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At one point last month, children were admitted to Yale New Haven Children’s Hospital with a startling range of seven respiratory viruses. They had adenovirus and rhinovirus, respiratory syncytial virus and human metapneumovirus, influenza and parainfluenza, as well as the coronavirus — which many specialists say is to blame for the unusual surges.
“That’s not typical for any time of year and certainly not typical in May and June,” said Thomas Murray, an infection-control expert and associate professor of pediatrics at Yale. Some children admitted to the hospital were co-infected with two viruses and a few with three, he said.
More thantwo years into the coronavirus pandemic, familiar viruses are acting in unfamiliar ways. Respiratory syncytial virus, known as RSV, typically limits its suffocating assaults to the winter months.
“It’s a massive natural experiment,” said Michael Mina, an epidemiologist and chief science officer at the digital health platform eMed. Mina said the shift in seasonality is explained largely by our lack of recent exposure to common viruses, making us vulnerable to their return.