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Virus Name: Calovo

Abbreviation: CVOV

Status
Probable Arbovirus

Select Agent
No

SALS Level
2

SALS Basis
Results of SALS surveys and information from the Catalogue.

Other Information

Antigenic Group
Bunyamwera

Section V - Antigenic Relationship and Lack of Relationship to Other Viruses

Calovo virus belongs in the Bunyamwera group. Antigenic reaction between Calovo and several other viruses is shown in the following tables:

Hemagglutination-Inhibition			Hemagglutination-Inhibition Tests
Antigen 8 units			Calovo System
Serum	Calovo	Homologous	Antigens
			Serum	Calovo	Batai	CV	Ilesha	Bunyam	Germiston


Calovo	40
Bunyamwera	20	80	Calovo	40	40	0	0	0	0
Cache Valley	160	160	Batai	1280	1280
Germiston	10	2560	Batai	80	80
Ilesha	160	2560	Cache Valley			160
Batai	1280	1280	First dilution of serum = 1:10
Kairi	80	No antigen
Wyeomyia	20	No antigen
First dilution of serum = 1:10

Relationship between Calovo and Chittoor Viruses by Complement-Fixation
	Antigen
Serum	Calovo	Batai	Bunyamwera


^* Maximal titer of serum in checkerboard titration.
Calovo	256 ^*	128	32
Batai	64	64	8
Bunyamwera	64	64	64

Above results from J. Casals, personal communication, 1961.

Ed. Note: The SIRACA considers the Calovo virus to be a strain of Batai virus on the basis of serological studies.

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