As per epidemiologists, due to the loss of the natural habitat of bats, this virus has emerged. Because they lose their habitat, the bats are stressed and go hungry. This makes their immune system weaker and due to this their virus load increases. This virus is then spilled through saliva and urine. Pigs are found to be an amplifying host; however, bats are the reservoir host and secrete virus in urine through the means of which the pigs become infected as they ingest items containing infectious viral particles.