Not Bubonic this time - but their fur, saliva and faeces could obviously carry and disseminate all manner of toxic filth(spores, virions, bacteria, unimaginably toxic disgusting putrid crap..)

When town/city and commercial centres were initially ever-so cleverly totally locked down for 2-3 months, billions of rats worldwide predictably fled their foodless, sinking or abandoned ships and headed for the suburbs where humans and their food scraps, waste and garbage were still to be found.

So where are the studies investigating the (deadly) role of rodents in spreading not just Covid 19 but all manner of viruses and infectious diseases between suburban humans and from home to home ?

How many unrecorded, unresearched deaths - to the nearest zillion - have inevitably been caused globally by the billions of rats that now appear to have permanently relocated to the suburbs ?

Links:
1) "What Diseases Do Rats Carry?"
https://www.orkin.com/rodents/rats/rat-borne-diseases
2) "Suburban Rat Infestations Surge after City-dwelling Rodents Run out of Food"
https://amp.theguardian.com/australia-news/2020/may/28/sydney-braces-for-rat-plague-after-covid-19-forces-hungry-rodents-to-turn-to-cannibalism