1921
Volume 14, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
USD

Abstract

Summary

A parasite preparation was made. The parasites in the preparation were morphologically intact and, when examined microscopically, appeared free of host materials. Serological tests indicated that this parasite preparation was agglutinable by plasmas from chickens with a history of infection but not by plasmas from chickens with no history of infection. Inactivation of the plasma at 50°C for 30 minutes did not cause significant changes in the ability of the plasmas to agglutinate the parasites; however, heating for one hour at 56°C reduced or abolished the agglutination reaction. A factor of considerable importance in the agglutination reaction was the parasite concentration in the antigen. For use in the capillary agglutination test the antigen was adjusted to contain one part of packed parasites and 4 parts of pH 7.2 phosphate buffered saline.

The antigen was stable at refrigerator temperature for 85 days, which was the longest period tested.

Loading

Article metrics loading...

/content/journals/10.4269/ajtmh.1965.14.529
1965-07-01
2017-11-19
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/journals/10.4269/ajtmh.1965.14.529
Loading

Most Cited This Month

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error