Many infectious diseases follow the seasons, but COVID_19 has only been in circulation for less than a year
For files - Flu shot pictures taken at North York Civic Centre - Public health workers lead a clinic helping to distribute the flu shot to Toronto residents in this file photo from Jan. 13, 2003.Will COVID-19 eventually become like the annual flu – waxing and waning with the seasons?It’s true that many infectious diseases follow a seasonal pattern, with infection rates going up and down as the weather changes.
In other words, communities that quickly took steps to contain the virus did better than those that were slow to respond – regardless of seasonal factors like temperature. Juni stresses that his study represents “a snapshot” in time. “COVID-19 might eventually become seasonal,” as the virus and the human population interact with each other, he adds.
She points out that many viruses routinely mutate, which can produce new genetic variants that can make it easier for them to proliferate. In the case of SARS-CoV-2, “it doesn’t currently have a huge amount of pressure on it to change because it transmits quite effectively,” she explains. Despite such uncertainties, it is becoming increasingly clear that SARS-CoV-2 has a harder time spreading outdoors than indoors, says Juni. He notes that SARS-CoV-2 is transmitted through large respiratory droplets, and possibly also their smaller counterparts called aerosols that may stay airborne after an infected individual coughs, sneezes or simply talks.
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