[An evaluation of the sensitivity of commercial ELISA kits for the detection of HBsAg]. / Evaluation de la sensibilité de quelques trousses commerciales ELISA pour le dépistage de l'AgHBs.

The sensitivity of seven commercial diagnostic kits for HBsAg detection was compared using the positive controls of the kits and a series of positive serum samples. No significant differences of sensitivity were noted between the kits, but there were some in the total reaction time and the facility of execution.

[The inverse passive hemagglutination reaction. An evaluation of preliminary trials]. / Réaction d'hémagglutination passive inverse. Evaluation de quelques essais préliminaires.

Studies were conducted on inverse passive haemagglutination to work out more sensitive methods for the detection of serological markers of the hepatitis B virus (HBV). IgG were coupled to human red blood corpuscles (RBC) and some parameters of the RBC sensitization, to the coupling and of the test itself were investigated.