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THE POPULAR SCIENCE MONTHLY. 



lent judgment and ample experience entitle both his facts and opinions 

 to great weight. 



1. Conceniing protection. 1. In a large tenement-house in East 

 Third Street were nine German families. An unvaccinated child was 

 taken sick with small-pox, and the case was kept secret until the 

 child died. All the other people in the house were vaccinated except 

 one family consisting of parents and three children. The parents did 

 not believe in vaccination and persistently refused it for their children. 

 All three children had small-pox and two died. No other cases oc- 

 curred in the house. 



2. The inmates of No. — East Eleventh Street were exposed to 

 small-pox. The vaccinators found three babies whose parents refused 

 to have them vaccinated. Within three weeks all three children died 

 of the disease. There were no other cases in the house. 



3. No. — St. Mark's Place. Three cases of small-pox had already 

 occurred in the house. The inspectors found three unvaccinated chil- 

 dren, but vaccination was refused. The two eldest children took the 

 disease ; the youngest was already dying of marasmus. No other 

 cases occurred. 



4. At No. — Tenth Avenue was a concealed case of small-pox al- 

 ready of twenty-one days' duration. He had been vaccinated in in- 

 fancy, but not since. He died before he could be removed. His wife 

 and four children had been successfully vaccinated just before the 

 husband took sick, and, though they had all slept in the same room 

 with this fatal case of small-pox twenty-one nights, not one of them 

 took the disease. 



Cases of this character, where the unvaccinated were selected and 

 attacked by the disease, while the vaccinated, though equally exposed 

 escaped, could be multiplied almost without limit. Here is one from 

 the inspector's own experience : 



Small-pox was in a tenement-house of eighteen families. Most of 

 the inmates submitted to vaccination, but two children were found 

 upon one floor and three upon another whose parents refused to allow 

 it, though repeatedly urged. Within a short time all five of these 

 children had the disease and three died. The parents of the three un- 

 vaccinated children had a fourth child who had been successfully vac- 

 cinated at school, and for which she received a severe beating at the 

 hands of her father. This child, although sleeping in the same room 

 with those who were sick and dying of the disease, entirely escaped. 



No more striking examples of protection afforded by vaccination 

 could exist than that furnished by placing infants on the first day of 

 their vaccination in a small-pox hospital, filled with patients in every 

 stage of the disease. This was frequently necessary during the epi- 

 demic, where the mother was attacked, and the infant must accom- 

 pany her to the hospital ; and, says the inspector, " not a single in- 

 stance has occurred where the infant so exposed has contracted the 



