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Hygiene. I. Mention the principal places in which specific
Yellow Fever prevails as an Endemic,
and the conditions necessary for its propoga-
tion beyond these localities. Among the principal places, in which yellow
fever prevails as an Endemic disease, may be
mentioned Havana, Denievara (British Gui [a] na) New
Orleans, etc- These are among the principal towns which
I call to mind, but the disease is Endemic throughout
the Island of Cuba, St. Dowings, Hayti, etc.- also
along the Coast of Peru in South America. The conditions necessary for its propogation-
Under this head it may be stated that the disease
may be carried from these localities by land &
by water- Either by germs clinging to clothing
or in cargo of ship- or by a person who is
is at the time sick of the disease being trans-
ported to a heal non-infected [locality] - Even under
these circumstances, that the disease may be
propagated in the next locality, there must be
a warm temperature, combined with mois-
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ture- Sanitarians also consider that the condit-
ion of a city, as to filth & drainage, has a
marked effect on the spread of the disease-
Instance the scarcity of the disease in
New Orleans, under military Law-
It might be stated, in this connection, that
the disease is not considered as of a con-
tagious nature, except by a few., & that there
must [be] certain conditions in [a] locality (which I
have above referred to) in order that the
disease should spread- The disease does
not often prevail beyond 40° North. A cold
snap generally check its course. II State your views with regard to the value
of quarantine regulations to prevent its
introductions into places beyond the yellow
fever zone. It is generally held that quaran-
tine regulations are of very great value
to prevent the introduction of the disease;
that by thorough disinfection of all infected
clothing & the strict quarantine of patients
the introduction of yellow fever may be
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