antibodies attack virus. body`s immune defenses. development of a vaccine against virus. modern scientific research in microbiolo

abstract airborne antibodies antibody antigen attack bacillus bacteria bacterial bacterium body bodys cell closeup cold colony corona coronavirus defenses development disease epidemic epidemiology evolution genetic genome germs illustration immune immunity immunoglobulin infection infections inside macro medical medicine micro microbe microbes microbiology microscope microscopic modern molecule mutation nano nanotechnology organism pandemic pathogen research scientific toxin vaccine viral virology virus viruses wallpaper