|   |  |  Pichinde crude brain antigen did not react in CF with mouse immune ascitic fluids for A, B, C, and Bunyamwera groups, Tacaribe, Junin, Machupo and Amapari. A low titer (4/10) CF result was observed with Tacaribe group MIAF. By plaque NT the virus also was shown to be different from Tacaribe, Juninn, Machupo, Amapari and Tamiami                                                       [1]                                             . Further CF tests with all known members of the Tacaribe group indicated that Pichinde is related to Tamiami                                                       [2]                                             ,                                                      [3]                                             .   |  |   |  | Results of Complement-fixation tests                                                        [2]                                              | 
|---|
 |   |       Immune ascitic fluid       | 
|---|
 |   |       Pichinde       |       Tamiami       | 
|---|
 |       Antigen       |       An 3739       |       W-10777       | 
|---|
 
  |  
  |  | *        Serum titer/antigen titer        |  |       Pichinde       | >256/32  * |       4/4       |  |       Tamiami       |       64/>64       |       128/> 128       |  
  |  |   |   
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