[Effect of urea and uric acid on the hemolytic activity of Sendai virus].

It was found that haemolytic activity of Fushimi strain of Sendai virus multiplied in allantoic cavity of chicken embryos is independent on its haemagglutinating titer and also on allantoic fluid urea and uric acid content. It was shown in experiments with embryonated eggs that these two compounds have no also influence on haemolytic activity induction in Sendai virus. Moreover, the results of an experiment in which allantoic fluid was replaced by Eagle's liquid suggest that most probably the other components present in allantoic fluid do not also influence the appearance of haemolytic activity of this virus.