| | | Utinga (BeAn 84785) virus is a member of the Simbu group [1] . In the CF test, Utinga antigen reacted with a Simbu group hyperimmune ascitic fluid at a titer of 8/>8 (antibody/antigen) [2] . It was also shown by CF that Utinga and Oropouche (BeAn 19991) viruses are antigenically related, but distinct from each other [2] , as shown below: | | | | | VIRUSES |
|---|
| Sera | Oropouche | Utinga |
|---|
|
| | * Antibody titer/antigen titer; 0 = <4/<4 | | Oropouche | 64/> 256 * | 0 | | Utinga | 16/>256 | 64/>256 |
| | Subsequently, further confirmation was obtained [3] . Furthermore, Utinga virus has been shown to be antigenically distinct from other members of the Simbu group by serum dilution plaque-reduction neutralization tests; and it was placed in the Oropouche complex, one of several complexes comprising the Simbu serogroup [4] . | | |
|
