The Use Of Passive Haemagglutination Test as a Diagnostic Procedure For African Horse sickness

The partially purified soluble antigen of jliri- can horse s i.c kne ss virus se para ted from the virus par- ticle wus co~centrated up to 100X of its original concentration. It was found that this antigen ret- a i.ne d the ’whole antigenicity in the devetechnique of passive haemagglutination test while the concentrated virus lostc completely this antigenicity. Since the partially purified . soluble antigen of AHS was routinely in the establishment of PHAT, CFT and AGPT it was of speciall interest to comp