Qvarnhem sjöbo virus
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What’s Going Around Right Now? The 4 Winter Viruses of the ‘Quad-Demic,’ Explained
Four illnesses are circulating in full force this winter, creating what many experts are calling a “quad-demic” in the U.S.
The most recent data from the Centers for Disease Control and Prevention show that “the amount of acute respiratory illness causing people to seek healthcare is at a high level.” Rates of COVID, seasonal influenza (the flu), and respiratory syncytial virus (RSV) are elevated across most areas of the country.
Similarly, norovirus—known commonly as the stomach flu—has been on the rise in the U.S., causing outbreaks across the country. According to CDC NoroSTAT data, a record 91 norovirus outbreaks were recorded for the week ending Dec. 5, —far more outbreaks than in recent years at this time.
These simultaneously spreading viruses aren’t only a burden to public health, but put added strain on healthcare systems.
“It [has] a huge impact, not just on the individual who’s sick, but on the community,” Geeta Sood, MD, ScM, assistant professor of medicine and hospital epidemiologist at Johns Hopkins Bayview Medical Center, told Health. “The entire healthcare struktur can
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Viruses detected in Swedish mosquito larvae
The new study, published in the journal Vector-Borne and Zoonotic Diseases, show that the Sindbis virus could be found in mosquito larvae in spring, the year after the outbreak. This means, the researchers conclude, that the virus can be transferred from the female mosquito to her eggs.
”The mosquitos are infected with the virus already at birth, which has not previously been shown,” says Magnus Evander, professor of virology and one of the researchers behind the study. “It was earlier believed that returning migratory birds brought the virus to the area or that it was carried by overwintering birds. Our findings show that virus can also circulate among mosquitos.”
The group of Umeå University researchers have shown earlier that Sindbis virus infections have increased sixfold in northern Sweden during the last 30 years. As many as 3 percent of the population have been infected at some point, leading researchers to believe that the Ockelbo disease is probably under-diagnosed.
”What’s more, Inkoo virus has also been traced to mosquitos and larvae in the area. Inkoo is a relatively unknown mosquito-borne virus which can cause
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Ockelbo Disease in Sweden: Unraveling the Epidemiology, Ecology, and Evolution of Sindbis Virus
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