Endemic typhus, or Brill's disease, is
assuming serious proportions in the
United States. There was a rapid increase
from 1931 through 1933, at which
time it was approaching epidemic proportions.
Early in 1934 anti-rat campaigns
to control typhus fever were
undertaken by the Biological Survey as
a Civil Works Administration project in
cooperation with the U. S. Public Health
Service and state health departments.
Poisoned baits were exposed and
trapping operations conducted on more
than three-quarters of a million premises.
The disease was successfully
checked, but not eradicated.