| 
			
			 Changes in the environment are driving displaced species of animals 
			into new habitats, allowing them to mix with other species or 
			potential hosts. 
 Those shifts, combined with greater human interaction with animals 
			as people move deeper into forests, increases the chances of a 
			virulent virus jumping species.
 
 This kind of spillover, when a pathogen in one species could start 
			circulating in another and potentially create a new disease – is 
			what appears to have happened in China with the virus that causes 
			COVID-19. Like many infectious viruses introduced this way, the 
			outbreak started with bats.
 
			
			 
			
            [to top of second column] | 
			
			 Please click on the link below 
								to see a Reuters interactive that explains why 
								bats are such natural hosts for viruses: 
								https://tmsnrt.rs/3bQ33G5
 (Reporting by Julia Janicki and Simon Scarr; 
								Editing by Will Dunham)
 
			[© 2021 Thomson Reuters. All rights 
				reserved.] Copyright 2021 Reuters. All rights reserved. This material may not be published, 
			broadcast, rewritten or redistributed.  
			Thompson Reuters is solely responsible for this content |