ECOLOGY OP WESTERN EQUINE AND ST. LOUIS ENCEPHALITIS VIRUSES: A SUMMARY OF FIELD INVESTIGATIONS IN WELD COUNTY, COLORADO, 1949 TO 19531

Abstract
THOMAS AIDAN COCKBURN, CLARENCE A. SOOTER, ALEXANDER D. LANGMUIR; ECOLOGY OP WESTERN EQUINE AND ST. LOUIS ENCEPHALITIS VIRUSES: A SUMMARY OF FIELD INVESTIGATIO