shows how scientists in a modern virology laboratory, with the aid of complex instruments such as the ultracentrifuge and the electron microscope,... - 病原菌 個影片檔及 b 捲影像00:26
study of the types of organisms which cause disease: fungi, bacteria, viruses, rickettsiae, and protozoa. uses animation and photography through a... - 病原菌 個影片檔及 b 捲影像00:28
shows how germs can cause illness, how the body provides defenses against germs and how shots and vaccinations supplement natural body defenses - 病原菌 個影片檔及 b 捲影像00:31注射疫苗
1950s: animation of antibodies attached to germs in blood stream. white blood cells engulf and eat germs in blood stream - 病原菌 個影片檔及 b 捲影像00:35細菌
viruses: what they are and how they work - part 11 of 31. the urgent need to find a cure for aids and cancer has pushed scientists to try to unlock the mysteries of viruses. viewers discover how viruses can invade, alter, and destroy healthy cells. they a - 病原菌 個影片檔及 b 捲影像00:31水滴
health: germs and the space visitors - part 10 of 20. investigates the effects of germs and the body's defenses against them in a story involving gleek and double gleek, visitors from space and two earth boys. the gleeks use their gleekoscope to show how - 病原菌 個影片檔及 b 捲影像00:32
health: germs and the space visitors - part 9 of 20. investigates the effects of germs and the body's defenses against them in a story involving gleek and double gleek, visitors from space and two earth boys. the gleeks use their gleekoscope to show how s - 病原菌 個影片檔及 b 捲影像00:31
health: germs and the space visitors - part 8 of 20. investigates the effects of germs and the body's defenses against them in a story involving gleek and double gleek, visitors from space and two earth boys. the gleeks use their gleekoscope to show how s - 病原菌 個影片檔及 b 捲影像00:30外星人
health: germs and the space visitors - part 7 of 20. investigates the effects of germs and the body's defenses against them in a story involving gleek and double gleek, visitors from space and two earth boys. the gleeks use their gleekoscope to show how s - 病原菌 個影片檔及 b 捲影像00:25
st. louis, mo, u.s. - laboratory in chesterfield, missouri, conducting clinical trials on flu vaccine on thursday, august 25, 2022. - 病原菌 個影片檔及 b 捲影像00:29美國
scientist filling test tubes in a novavax lab in gaithersburg, maryland, u.s., on wednesday, may 18, 2022. - 病原菌 個影片檔及 b 捲影像00:14
wearing a mask to safe your family at home concept with illustration medical element - 病原菌 個影片檔及 b 捲影像00:10
bacteria, animation. these bacteria have flagella extending from one end, which are beaten for propulsion - 病原菌 個影片檔及 b 捲影像00:20細菌
cu viral earth pandemic planet spinning on white background / oxford, oxon, united kingdom - 病原菌 個影片檔及 b 捲影像00:10
ms view of viral earth pandemic planet spinning on white background / oxford, oxon, united kingdom - 病原菌 個影片檔及 b 捲影像00:10粒子
people in brazil protesting over brazilian president jair bolsonaro's handling of the coronavirus pandemic - 病原菌 個影片檔及 b 捲影像00:32
compilation of nurses and doctors running around patients in an army hospital - 病原菌 個影片檔及 b 捲影像00:14咳嗽
los angeles, ca, u.s. - lab technician testing sample. a wellness clinic in tarzana is offering free rapid covid-19 testing to all county sheriff's... - 病原菌 個影片檔及 b 捲影像00:36
word "new normal" created with powder in warm colors exploding towards camera in super slow motion and closeup on black background - 病原菌 個影片檔及 b 捲影像00:40橙色, 爆炸
chicago, il, u.s. - laboratory equipment and test tubes at abbott laboratories which is helping meet covid-19 test kit demand on thursday, march 19,... - 病原菌 個影片檔及 b 捲影像00:31
medical laboratory scientist tests vials for coronavirus at the university of washington medicine virology lab on march 13, 2020 in seattle,... - 病原菌 個影片檔及 b 捲影像00:08