close-up, a female health worker with overalls and protective mask to fight coronavirus

antiviral antivirus attack bacteria bacteriology bacterium biology cilia close conceptn corona coronavirus coronavirusn detecting digital disease doctor ebola effects energetic epidemic feces female fever fight generated germ h1n1 health imagination infection intestine mask medical medicals medicine microbe microbes microbiology microorganism microscope molecules motion moving nano organism overalls protective public sars science symbiotic syndrome technology under virus white woman worker