Why?
Bubonic plague is spread through bites from an infected flea or exposure from a break in the skin.
"Bubonic plague is transmitted through the bite of an infected flea or exposure to infected material through a break in the skin. Symptoms include swollen, tender lymph glands called buboes."
https://emergency.cdc.gov/agent/plague/faq.asp#:~:text=Bubonic plague is transmitted through,tender lymph glands called buboes.
COVID -19 has claimed almost 7,000,000 lives world wide.
Your post shows the utter ignorance of COVID by so many blowhards on this site unfortunately.
https://covid19.who.int/