ASIAN INFLUENZA IN OLD AGE GROUP
1958 Volume 8 Issue 5 Pages 381-384
Details
1958 Volume 8 Issue 5 Pages 381-384
At the beginning of March 1958, a small outbreak of influenza occurred in an almshouse in Gunma Prefecture, and Asia'flu viruses were isolated.
In the course of this outbreak, 66 cases were found and 5 patients died, Most of the patients were over seventy years of age.
All isolates, except one from the dead case, were in Q phase and not susceptible to non-specific inhibitors in human and guinea pig sera. Only the isolate from the dead case was in P phase.
Antibody patterns in sera from the patients were determined with prototype strains, and significant rises in titer were found in almost all the sera with both Asia and Swine viruses. On the other hand, no antibody response was observed with strains of FMI and PR8 sets.
