Influenza : $b An epidemiologic studyVaughan, Warren T. (Warren Taylor)
History
Influenza : $b An epidemiologic study
Vaughan, Warren T. (Warren Taylor)
Influenza
In the same month that the disease broke out in Scotland it appeared in
Spain. The Inspector General of Health in that country reported that an
epidemic of the disease began at Madrid in the last half of May, 1918,
at a period when there was an unusually large gathering of people in the
city. Within a short time it had spread rapidly through all the
provinces. The increase in death rate became marked on the 27th of May
and reached its peak on the 31st, at which time the rate was twice that
of the average annual death rate for that period of the year. During the
following week there was some oscillation around the peak and then the
curve fell away. The epidemic was particularly severe at Madrid,
Badajoz, and Seville. It was mild at Barcelona.
MacNeal remarks: “In Spain the disease appeared in epidemic form about
the middle of May and this outbreak received great publicity, sufficient
to lead to the popular appellation of Spanish influenza. The very rapid
and extensive spread of the disease in Spain would indicate that it had
been introduced from without rather than transformed from the endemic
state in that country. This also appears to accord with the view of
those who have studied the epidemic in Spain.”
Filtzos reports that influenza first appeared in Greece toward the end
of May, 1918. The symptoms were slight and the people who were attacked
suffered for three or four days with fever, accompanied by nervous
symptoms. It was called at the time “Spanish Fever”. Beginning with
September the epidemic became worse and caused a considerable rise in
mortality. Complications with bronchopneumonia appeared. The decrease in
incidence began toward the middle of December, 1918.
According to Benjafield, the pandemic first commenced in the Egyptian
Expeditionary Force in May, 1918, but the maximum incidence was not
reached until September and October. The cases during the earlier period
of the epidemic were on the whole mild in type and of short duration,
only a very small proportion being complicated by bronchopneumonia. The
epidemic continued from November, through February, 1919, but the number
of cases showed a marked decrease during the last two months.
The month of June saw the spread into England which we have already
described, and the continuation from the German West front back into the
enemy territory.
Rose reports that on the 3d of June, 1918, in Strasbourg the first cases
of influenza were reported in his hospital and that by the 15th of the
month the disease was practically epidemic. Wachter in reporting cases
from Frankfurt a. M. says that the cases of influenza in that city
appeared from the beginning of June, 1918. Schmorl remarks that
influenza became epidemic in Dresden in the beginning of July, 1918.
According to Koepchen, the disease was epidemic in Bonn the 25th of
June.
Public-domain text, read in full here on John Shaqi.
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