Hi @respect thats a great question! However this is still uncertain in the context of this new and ongoing pandemic. While researchers are fairly certain that the COVID-19 virus began as a zoonotic infection that likely started spread to humans from bats, it is not certain if it can spread to other animals and insects as mentioned. Ultimately, the best way to reduce your risk of catching the infection is through hand hygiene and wearing masks when exposed to others (or even animals) that are unwell.

The CDC echoes this uncertainty, and has also shared about a possible case of spread from humans to tigers/lions in a New York zoo here: https://www.cdc.gov/coronavirus/2019-ncov/daily-life-coping/animals.html

The question was also about if birds or houseflies sit on an infected area and then fly somewhere else and sit there then can that be dangerous. There is a doctor who wrote that they can infect other places.