Wherever an action was about to occur on the front the hospitals were
evacuated of all sick and wounded in order to obtain the maximum
number of empty beds. Consequently when fighting was going on the
hospitals were very busy but the laboratory routine greatly decreased
except in hygienic work. We therefore undertook scientific
investigations of various kinds to keep busy and be of the maximum
use.
At the suggestion of the D.M.S. of the army, Major Rankin made a
survey of the army area for anopheles mosquitoes. The Indian corps was
in our area at the time and he obtained the co-operation of the
officers of the Indian Medical Service, who being particularly keen on
biting insects collected many specimens for him. This variety of
mosquito transmits malaria, and, as we were getting a few cases of
malaria in troops who had been in tropical climates, it was important
to determine accurately the varieties of mosquitoes present,
particularly since the numerous ditches, canals and ponds of the
country were ideal places for their multiplication. In spite of the
anopheles mosquito being found everywhere, Major Rankin reported that
he did not believe that there would be many new cases of malaria,
develop in France and such proved to be the case.
Captain Ellis began an investigation into the grouping of the various
strains of "meningococci"--the organism causing cerebro-spinal
meningitis, with the ultimate object of obtaining a more efficient
anti-serum for the treatment of this disease.
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