From this article: [
www.cidrap.umn.edu]
Although some pundits have suggested that the COVID-19 pandemic will dissipate with coming warm temperatures and high humidity in the Northern Hemisphere,
the virus is unlikely to be seasonal in nature, according to a paper published yesterday by the National Academy of Sciences, Engineering, and Medicine.
...
Even if warmth were unfavorable for COVID-19, "given the lack of host immunity globally, this reduction in transmission efficiency may not lead to a significant reduction in disease spread without the concomitant adoption of major public health interventions," they wrote. "Given that countries currently in 'summer' climates, such as Australia and Iran, are experiencing rapid virus spread, a decrease in cases with increases in humidity and temperature elsewhere should not be assumed."
They added that neither the coronaviruses that cause severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS) nor the flu strains of previous pandemics have shown a seasonal pattern.
"There have been 10 influenza pandemics in the past 250-plus years—two started in the northern hemisphere winter, three in the spring, two in the summer and three in the fall," they said. "All had a peak second wave approximately six months after emergence of the virus in the human population, regardless of when the initial introduction occurred."
AlbaNY_Ram