Half of Us Carry Influenza Germs

1919

BACILLUS PERSIST IN THROAT FOR SEVERAL MONTHS.

Presence of Microbes Found in Throats of Persons Who Have Never Had Disease.

Almost half of us carry the bacilli of influenza in our noses and throats all the time, according to a large number of investigations made in the last two years.

During the epidemic of influenza last year, Drs. I. W. Pritchett and E. G. Stillman found the bacillus influenzae in the throats and saliva of 42 per cent of 177 healthy persons from whom no history of respiratory infection was obtainable. At the same time Drs. F. T. Lord, A. C. Scott, Jr., and R. N. Nye found them in the pharingeal secretions of 76 per cent of thirty-four healthy men in the Harvard Student Army Training Corps. Dr. E. L. Opie and his collaborators found them in 35.1 per cent of all healthy men examined at Camp Funston.

Many Are Germ Carriers.

Now comes Drs. Agnes I. Windrell and Ernest G. Stillman with a report to the Journal of Experimental Medicine on examinations since the epidemic died out. This indicates that the percentage incidence of those harboring bacillus influenzae in the upper respiratory tract is as great during the post-epidemic period as it was during the influenza epidemic.

During December, 1913, to June, 1919, the percentage of carriers in a group of fifty individuals has averaged 4 per cent per month. In addition, it is of interest that in a boys' orphan asylum in which no cases of influenza had occurred during the epidemic, 30 per cent of throat cultures taken from 99 boys showed the presence of bacillus influenzae.

And this last is the same percentage as was found in fifty-two convalescents from influenza in an institution for girls.

Germ Persists for Months.

"It is evident," writes these investigators, "that bacillus influenzae may persist in the throats of healthy carriers for a considerable period of time." They cite six cases in which it persisted for five months and in thirteen others for four months.

Therefore, as nearly every second person has the germs of this disease in his throat, it behooves us all to be very careful to keep up our strength by cleanliness, fresh air and wholesome food in order that we may not lose our powers of resistance and open the way for these deadly microbes to invade our blood in such force that we cannot repel their attack.

—The Saturday Blade, Chicago, Jan. 3, 1920, p. 9.