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  Chaco   CHOV

Possible Arbovirus

No

2

Results of SALS surveys and information from the Catalogue.
Other Information
 

Timbo
Section V - Antigenic Relationship and Lack of Relationship to Other Viruses
 
Chaco antigen did not react in CF testing with: Mucambo, EEE, Mayaro, Una, Aura, Pixuna, YF, Ilheus, Bussuquara, SLE, Oriboca, Murutucu, Apeu, Caraparu, Marituba, Itaqui, Nepuyo, Catu, Guama, Moju, Capim, Guajara, Bushbush, Mirim, Maguari, Kairi, Guaroa, Tucunduba, Taiassui, Sororoca, Melao, Oropouche, Icoaraci, Tacaiuma, Turlock, Cocal, Lukuni, Candiru, Piry, Pacui, Acara, Irituia, Jurona, Anhanga, Naples, Chagres, Germiston, Bunyamwera, Batai, Ilesha, California, trivittatus, Tahyna, Lumbo, Sathuperi, Akabane, Ingwavuma, Navarro, Manzanilla, EHD-NJ, Triniti, Ieri, Aruac, Tacaribe, Hart Park, Colorado tick fever, Anopheles A and B, Panama J55, B535, Cas Cas, Hughes, Tete, Nyamanini, Witwatersrand, Quaranfil, Sicilian, Bwamba, Wad Medani, Mossuril, Wongal, Mapputta, Bakau, Ketapang, Nodamura, Tsuruse, Ganjam, Lebombo, K-622, Chenuda, VSNJ, Simbu, Wanowrie, Palyam.
Chaco serum (hyperimmune, 16) did not react in CF testing with: Jurona, Marco, Anhanga.
Chaco serum did not inhibit hemagglutination of: EEE, Mucambo, Aura, Una, Mayaro, Pixuna, YF, Ilheus, Bussuquara, SLE, Oriboca, Murutucu, Caraparu, Guama, Maguari, Guaroa, Icoaraci, Tacaiuma, Turlock, Candiru, Anhanga.
 
CF relationship demonstrated with Timbo as follows:
Serum
Antigen Timbo Chaco


* Serum over antigen
Timbo 64/64 * 16/16
Chaco 8/>64 64/> 64
Normal brain 0/0 0/0
The recently registered Sena Madureira virus was shown to be related to Chaco and Timbo viruses by CF; thus the Timbo serogroup now consists of three members (see Sena Madureira registration card).
 
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