TABLE IV.

INCORPORATION OF THE ARBOVIRUSES IN A UNIVERSAL SYSTEM OF CLASSIFICATION

Arboviruses		Togaviruses (RNA-cubic-enveloped)
Not togaviruses	Togaviruses	Arboviruses	Not arboviruses
African horsesickness	Group A	Antigenically, group A	Antigenically, group Ba
Bluetongue	Sindbis	Sindbis	Modocc
Kemerovo	Middelburgb	Middelburg	Bat salivary glandc
Tribec	Semlikib	Semliki
Colorado tick fever	Other (β)	Other	Antigenically, Tacaribe group:
Chenuda (? NA)			Arenoviruses
Corriparta (? NA)			LCMc
Other	Group B	Antigenically, group B	Machupoc
RNA-cubic-naked	Tick-borne enc.b	Tick-borne enc.	Tacaribec
Reovirus, reoviruslike; diplornavirus	Omsk HFb	Omsk HF	Lassac
	St. Louisb	St. Louis	Otherc
Nodamura (cubic ?)	Powassanc	Powassan
RNA-cubic-naked	Other (β)	Other (β)	Antigenically, other arbovirus groups
Picornavirus			?
	Other groups	Other antigenic groups
Batai (?NA)	?	Some arboviruses
Inkoo (?NA)		Some not arboviruses	Rubella
Uukuniemi (RNA) RNA-helical-enveloped Myxoviruslike	Ungrouped ?	Ungrouped Some arboviruses Some not arboviruses	Other RNA-cubic-enveloped (?) or some of the RNA-undetermined symmetry-enveloped (?)
Cocal
VSV-NJ
VSV-I
Bovine ephemeral fever
Hart Park (? NA)
Other
RNA-helical: complex-enveloped
Rhabdovirus
African swine fever
DNA-cubic-enveloped
Iridovirus
Cotia
Poxviruslike

^aSerial propagation by inoculation in mosquitoes unsuccessfully attempted with Modoc and bat salivary gland viruses. There are at least 6 additional viruses in antigenic group B which may be togaviruses for which there is no proof of transmission by arthropods in nature nor recorded attempts to serial passage in the laboratory.

^bLikely to be a togavirus; however, no categorical statement on its symmetry available.

^cNo evidence that it is arthropod-borne; possibly a togavirus but there is no knowledge on its symmetry.