Article contents
The 6-hour soluble antigen production test for comparing the infectivity of influenza virus preparations
Published online by Cambridge University Press: 15 May 2009
Extract
1. The 6 hr. soluble antigen production test for comparing the infectivity of influenza virus preparations is described in detail. Dilutions of the preparations are inoculated intra-allantoically into groups of fertile eggs, and after 6 hr. of incubation the amounts of soluble antigen formed in their chorio-allantoic membranes are determined. Reproducible results can be obtained.
2. The similar test, in which haemagglutinins in the chorio-allantoic membranes are measured 6 hr. after inoculation of seed virus, is less accurate and less sensitive.
3. Eggs of different ages of incubation form different amounts of soluble antigen in their chorio-allantoic membranes in 6 hr. when inoculated with the same amounts of virus.
- Type
- Research Article
- Information
- Copyright
- Copyright © Cambridge University Press 1956
References
REFERENCES
- 7
- Cited by