A medical illustration of drug–resistant, Neisseria gonorrhoeae bacteria. Original image sourced from US Government… https://www.rawpixel.com/image/2288553/free-photo-image-bacteria-virus-biologyFree Image from public domain licenseMicroscopic Objects. Digitally enhanced from our own original edition of A History of the Earth and Animated Nature (1820)… https://www.rawpixel.com/image/411902/free-illustration-image-cell-fossil-microscopicFree Image from public domain licenseNovel Coronavirus SARS-CoV-2–This scanning electron microscope image shows SARS-CoV-2 (yellow)—also known as… https://www.rawpixel.com/image/2294163/free-photo-image-virus-microbiology-scienceFree Image from public domain licenseTransmission electron microscopic (TEM) image, revealed ultrastructural details exhibited by numerous, Coxiella burnetii… https://www.rawpixel.com/image/2288506/free-photo-image-science-biology-antibodyFree Image from public domain licenseMERS Coronavirus Particles–Transmission electron micrograph of Middle East Respiratory Syndrome CoV particles found… https://www.rawpixel.com/image/2294226/free-photo-image-virus-microscope-micrographFree Image from public domain licenseNovel Coronavirus SARS-CoV-2–This scanning electron microscope image shows SARS-CoV-2—also known as 2019-nCoV… https://www.rawpixel.com/image/2294210/free-photo-image-cell-microbiology-healthFree Image from public domain licenseA 440X photomicrograph magnification of a hematoxylin and eosin (H&E)–stained liver tissue specimen, revealed the… https://www.rawpixel.com/image/2288342/free-photo-image-liver-biology-microscopeFree Image from public domain licenseMERS Coronavirus Particles–Transmission electron micrograph of Middle East Respiratory Syndrome virusCoV particles… https://www.rawpixel.com/image/2294155/free-photo-image-microscope-medical-awarenessFree Image from public domain licenseA 3D image of a number of oblong–shaped, Vibrio parahaemolyticus bacteria Original image sourced from US Government… https://www.rawpixel.com/image/2288346/free-photo-image-bacteria-biology-scienceFree Image from public domain licenseWhite coronavirus under a Microscope. Original image sourced from US Government department: Public Health Image Library… https://www.rawpixel.com/image/2282546/free-photo-image-cell-science-virusFree Image from public domain licenseWilson Bentley's Snowflake 920 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798905/free-photo-image-snow-snowflake-winterFree Image from public domain licenseNovel Coronavirus 2019-nCoV electron microscope https://www.rawpixel.com/image/2296307/free-photo-image-science-microbiology-medical-backgroundView licenseVaccine development png doodle illustration https://www.rawpixel.com/image/2854478/free-illustration-png-science-medicine-microscopeView licenseMERS Coronavirus Particles–Colorized scanning electron micrograph of MERS virus particles (yellow) both budding and… https://www.rawpixel.com/image/2294208/free-photo-image-microbiology-microscope-virusFree Image from public domain licenseMicroscopic Objects. Digitally enhanced from our own original edition of A History of the Earth and Animated Nature (1820)… https://www.rawpixel.com/image/411898/free-illustration-image-fossil-microscope-cellFree Image from public domain licenseA photomicrograph of Candida albicans fungal spores. Original image sourced from US Government department: Public Health… https://www.rawpixel.com/image/2288324/free-photo-image-bacteria-cdc-microscopeFree Image from public domain licenseA 3D illustration of drug–resistant, nontyphoidal, Salmonella sp. bacteria https://www.rawpixel.com/image/2290007/free-psd-bacteria-salmonella-resistantView licenseA 100X photomicrograph magnification of a hematoxylin and eosin (H&E)–stained liver tissue specimen, revealed the… https://www.rawpixel.com/image/2288361/free-photo-image-microscope-liver-medicalFree Image from public domain licenseWilson Bentley's Snowflake 562 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798883/free-photo-image-snowflake-snow-winterFree Image from public domain licenseThe nucleus of an atom. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3292316/free-photo-image-eye-fire-circle-photography-red-abstractFree Image from public domain licenseA medical illustration of drug–resistant, Neisseria gonorrhoeae bacteria. Original image sourced from US Government… https://www.rawpixel.com/image/2288651/free-photo-image-bacteria-science-biologyFree Image from public domain licenseGroup A Streptococcus (GAS), Streptococcus pyogenes bacteria, which were atop the surface of a human white blood cell (WBC)… https://www.rawpixel.com/image/2288304/free-photo-image-blood-cells-white-cell-streptococcusFree Image from public domain licenseMicroscopic mold. Original image sourced from US Government department: Public Health Image Library, Centers for Disease… https://www.rawpixel.com/image/2282521/free-photo-image-mold-bacteria-cdcFree Image from public domain licenseA medical illustration of drug–resistant, Streptococcus pneumoniae bacteria. Original image sourced from US Government… https://www.rawpixel.com/image/2288648/free-photo-image-biology-science-laboratoryFree Image from public domain licenseA medical illustration of drug–resistant, Mycoplasma genitalium bacteria. Original image sourced from US Government… https://www.rawpixel.com/image/2288643/free-photo-image-laboratory-microscope-scienceFree Image from public domain licenseA petri dish culture plate contained a growth medium of sheep blood agar (SBA), which was inoculated with Bacillus anthracis… https://www.rawpixel.com/image/2288584/free-photo-image-blood-medical-organs-petri-dishFree Image from public domain licenseUltrastructural morphology shown by coronavirus. 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