Effects of Temperature and Ultraviolet Light on Experimental Polyarthritis of Rats. *

Abstract

Conclusion

In the experimental polyarthritis of rats produced !by the L₄ strain of pleuropneumonia-like organisms exposure to cold or increased ultraviolet light under the conditions used caused increased mortality but resulted in a smaller incidence and severity (females only) of arthritis; whereas, increased heat caused, little deviation in mortality and arthritis involvement from the inoculated controls.