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laboratorian is identifying fleas as one step in the collection of plague study data
fish basket like this one is often used as a holding cage for birds that will be later tested during arbovirus studies
colorado tick fever virus member of the genus coltivirus one of nine genera of the virus family reoviridae
oughened surface at the tip of one of the prongs of a bifurcated smallpox vaccination needle
morphologic details of one of the two compound eyes used by an unidentified bug
immunization is one of the most important things a parent can do to protect their childrens health
at this magnification one may note the stippled appearance of the roughened surface of the proteinaceous coat
this location was one of the many hospitals visited by public health officials during the 1975 rhodesian
700 year old great zimbabwe ruins one of the south african sites
thin blood films such as this one should be air dried fixed with methyl alcohol and when dried immediately stained
blood feeding anopheles gambiae mosquito this mosquito is one of the leading malaria vectors in the world
the buoy in the background is one of four that marks el salvadors first marine protected site
gathering of bangladeshi shoppers at the lord hardinge bazaar on one of its market days
country boat crew and passengerspulled along one of the many bangladesh waterways
