COVID-19 was manufactured in china from the labs to stop the amid protesting. However due to tourism the virus was spread from person to person by contact by skin/coughing/sneezing. If you have noticed the protesting you don't hear about it anymore. Chinese nationalist and also a hardvard professor was arrested a while ago with links of bio engineering and also some tried to bring biohazard materials back to China.
TLDR: Virus is man-made just like Ebola and Aids and etc... these viruses are tools of population control which is why evrey 5-10 years you hear of a new virus.
Cavamen didn't have this shit and they were eating like raw animals yet all these diseases started popping up between 19th-21st century. There is no fucking way right after protests in china came about this virus originated in china and they tried to blame them eating bats.
There is a reason human population took a long time to grow until recently. Humans were getting all kinds of viruses/bacterial infections just like any other mammals would. Only the strong survived to populate. A primitive human settlement could be wiped out. Its a lot harder to spread when cavemen are in little groups.
I suppose you think the black death was manufactured also?