According to MICHAEL FAVOROV world-renown Epidemiologist & US CDC, there are at least 40 types of Coronavirus. Dozen can be contacted by a human with minimal symptoms because they adapt immunity on the human body. The NOVEL Coronavirus has recently introduced to humans from other species mostly likely a BAT. The Bat serves as a natural reservoir for the virus to have an epidemic of their own, their virus develops BILLIONS of forms, one of which could be capable of CROSS-SPECIES transmission. FAVOROV said this is most likely took place in WUHAN, China…SOURCE: Google: “Everything depend on where you get virus US- RUSSIA”.