Dear friends, 

I'm writing to let you know about a worrisome fact I recently heard about this winter season and the potential for it to coexist with a further spread of the COVID-19 virus. You see, due to the colder weather this winter, experts believe that the virus has the potential to be more spreadable inside buildings, leading to worse symptoms and transmission rates for us all.

I urge you to take caution with this information and please do whatever you can to prevent the virus from spreading even further.

Regards, 
[Your Name]
Gli esperti temono che la prossima stagione invernale possa portare sintomi peggiori e tassi di trasmissione più elevati di COVID-19, poiché il freddo all'interno degli edifici potrebbe facilmente diffondere il virus.
Dato il seguente articolo, riscrivilo sotto forma di una lettera personale.