SIZE, SHAPE, AND HYDRATION OF VIRUSES 



65 



Virus Dimensions 



We conclude with a table of virus dimensions which is prob- 

 ably nowhere near complete but which represents some of the 

 available information on viruses. At this stage it is worth while 

 to see what kind of classification of viruses by shape is possible. 

 One fact is readily apparent — many viruses are s])herical. To 



TABLE 2.5 



Virus 



Dimensions (A) 



References* 



Psittacosis 



Vaccinia 



Herpes simplex 



Rabies 



Influenza 



Newcastle 



Staphylococcus phage 



T-2 coli phage 



M-5 megaterium phage 



T-1 coli phage 

 Rabbit papilloma 

 Tobacco mosaic 



Southern bean 



Tobacco necrosis 



Bushy stunt 



Lansing polio 

 Coxsackie Texas 1 



Yellow fever 



Louping ill 



Tobacco ring spot 



Japanese B encephalitis 



Alfalfa mosaic 



Foot and mouth disease 



4,500 diameter 

 2.600 X 2.100 

 1,500 diameter 

 1,250 diameter 

 1,150 diameter 

 1.150 diameter 

 1,000 diameter head 

 2,000 long tail 

 600 X 800 head 

 1,500 long tail 

 760 diameter head 

 3,000 long tail 

 500 head, 1.500 tail 

 440 diameter 

 2,800 long; hexagonal 



cross section, side 



87 A 

 298 diameter 



300 diameter 



300 diameter 



250 diameter 

 340 diameter 



220 diameter 

 190 diameter 

 190 diameter 

 180 diameter 

 170 diameter 

 100 diameter 



Friedman and Franklin 



(1953) 

 Fluke (1953) 



Williams (1952) 



Ritland, Kaesberg, and 



Beeman (1950) 

 Ritland, Kaesberg, and 



Beeman (1950) 

 Ritland. Kaesberg, and 



Beeman (1950) 



Melnick, Rhian, Warren, 

 and Breeze (1951) 



* The authority for a large part of this table is from Stanley's review article in Chem- 

 ical and Engineering News (1947). Other references are specifically given. 



