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this transmission electron micrograph tem taken at a magnification of 150000x

标签: this,transmission,electron,mic

at this magnification one may note the stippled appearance of the roughened surface of the proteinaceous coat

标签: at,this,magnification,one,may,

small child as he received a smallpox vaccination at a local health department

标签: small,child,as,he,received,a,s

sierra leone weaver practicing his craft at a loom as fellow villagers watch

标签: sierra,leone,weaver,practicing

photograph of plague laboratory buildings at a cdc san francisco ca field station

标签: photograph,of,plague,laborator

peruvian street vendor is selling a corn based drink he made at home

标签: peruvian,street,vendor,is,sell

palm trees at night africa

标签: palm,trees,at,night,africa

airport attendants at the rear of a plane at waterloof military airport in pretoria south africa

标签: airport,attendants,at,the,rear

these rondavals huts were located at a victoria falls hotel in rhodesia1

标签: these,rondavals,huts,were,loca

these rondavals huts were located at a victoria falls hotel in rhodesia

标签: these,rondavals,huts,were,loca

railway bridge leading from rhodesia to zambia is overlooking the zambezi river at victoria falls

标签: railway,bridge,leading,from,rh

smallpox vaccination site should be covered with a breathable bandage at all times

标签: smallpox,vaccination,site,shou

two anopheles gambiae mosquitoes as the female at the top of the image was in the process of egg laying

标签: two,anopheles,gambiae,mosquito

some of the ultrastructural morphologic details seen at the distal tip of the stinger apparatus

标签: some,of,the,ultrastructural,mo

at the regiment basic school in lusaka zambia students look out a classroom window

标签: at,the,regiment,basic,school,i