| | | In preliminary tests Inkoo showed a relationship to the Tahyna virus of the California group [2] : | | | | | Viruses/Antigens |
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| | Mouse | | Cell culture | Complement-fixation | | Hemagglutination-inhibition |
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| | NT | | NT | | | |
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| Mouse Immune Ascitic Fluid | INK | TAH | INK | TAH | INK | TAH | CVO | INK | TAH | CVO |
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| | * Logs neutralized in dex | | ** Antibody titer/antigen titer | | HI: 0 = <10 | | NT = not tested | | Inko(INK) | 3.9 * | 3.4 | 160 | 10 | 160/80 ** | 40/160 | 0/0 | 320 | 160 | 0 | | Tahyna(TAH) | 3.4 | > 5.9 | 40 | 5120 | 40/40 | 80/80 | NT | 320 | 1280 | NT | | Calovo(CVO) | NT | NT | NT | NT | 0/0 | NT | 1280/640 | 0 | NT | 10240 |
| | In Yale Arbovirus Research Unit, Dr. J. Casals (in letter, 1970) found Inkoo to be an agent in the California group, distinguishable (by CF) from those whose name appear in the following table: | | | | Serum or Ascitic Fluid |
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| Antigen | Inkoo Sera | Tahyna | Calif. enceph. | Triv. | Melao |
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| | 1 | 2 | | | | |
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| | 1:one injection (others multiple) | | a Antibody titer/antigen titer | | Inkoo | 32/256 | 512+/256 a | <8 | 8/256 | <4 | 256/128 | | Tahyna, lot a | 8/256 | NT | 32/256 | 64/256 | <4 | NT | | Tahyna, lot b | 8/256 | 256/256+ | 32/128 | 128/128 | <4 | 256/256 | | Calif. enceph. | 16/128+ | 256/256 | 8/256 | 128/256 | NT | 256/128 | | Trivittatus | <8 | 128/256 | <8 | 32/16 | 16/128 | 128/128 | | Melao | NT | 128/128 | NT | <16 | NT | 512+/256 |
| | No fixation with following antigens and Ikoo serum sample No. 2: WEE. Sindbis, chikungunya, Semliki Forest virus, VEE, West Nile, Central European tick-borne, Zika, Anopheles A, Bunyamwera, Batai, Guaroa, Wyeomyia, Akabane, Manzanilla, Sathuperi, Simbu, Marituba, and Caraparu. | | |
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