CASE No. 28
HOBART MINNICK, son of S. V. Minnick, R. D. No. 2, Carthage.
Vaccinated Sept. 22.
Commenced to complain Oct. 2 (10 days).
Recovered.
This boy, age 13, brother of Ruth Minnick, was vaccinated from same capsule as sister who died; was very sick with symptoms “about like the girl,” but recovered with no serious consequences. It appears almost certain that this was what may be called an “abortive” or “arrested” case of infantile paralysis. The fact that he was vaccinated simultaneously with his sister, who died of a transparent case of infantile paralysis, is strong presumptive evidence of a common origin of the two cases in the vaccine. Cumulative evidence of this common origin in the virus, and of the possibility of transmitting infantile paralysis by means of the vaccine abrasion, is found in a third case in the same house, as follows: