During the century preceding Jenner's discovery of vaccination, according to Neimeyer's calculation 400,000 people died of smallpox each year in Europe. Bernouilli, a trustworthy statistician, says that during that same century, "Fully two-thirds of all children born in Europe were, sooner or later, attacked by smallpox, and on an average one-twelfth of all children born succumbed to the disease."
Early in the sixteenth century 3,500,000 people in Mexico had smallpox (Prescott's Conquest of Mexico). In 1707, in Iceland, 18,000 of the population of 50,000 died of smallpox; and in 1891, 25,000 persons in Guatemala died of this disease. In 1875 there were anti-vaccination riots in Montreal, and as a consequence most of the younger inhabitants of that city were not vaccinated. In 1885, smallpox was brought in from Chicago; 3,164 persons died of the disease; of these 2,717 were children under ten years of age, and thousands had the disease.
Vaccination may render one immune to smallpox for many years, but if the disease is epidemic it is well to renew the vaccination after about eight years. In normal vaccination, where the lymph has been derived from a reliable source, on the third or fourth day pale red papules develop at the point of inoculation, and about the tenth day these have become pustules. The vesicles dry gradually, and between the fourteenth and twentieth days the scab falls off, leaving a pitted scar. About the fifth day an aureola of inflammation forms around the pocks, from a quarter of an inch to two inches in extent, and the inflamed area may be somewhat sore. A shield should be kept over the vaccination spot for two days, and this is then to be replaced by a piece of sterile gauze held in place by narrow strips of sticking-plaster above and below the inflamed area. Sometimes hives and other rashes occur in vaccination, but they are unimportant.
Where there is a very sore arm or other trouble, the cause may be a pre-existing unhealthy condition, like scrofula for example, or the patient has scratched the pocks, or infected them from his clothing, or the vaccine lymph was unsterile. A careless and dirty vaccinator might infect an arm with pus organisms. If good glycerinated lymph, not too fresh or too old, is used, there is seldom any trouble; but in any case all the annoyance that may come from vaccination is infinitesimal when compared with the smallpox it averts.
We may take a smallpox case as a typical contagious disease in which the priest is to give the last Sacraments; and the disinfection and other precautions observed in such a visit will serve for any other very contagious disease. For only typhus and one or two other maladies are the precautions so elaborate as those needed in smallpox.
There is a dress, called "Dr. Hawes' Antiseptic Suit," and in time of epidemics a priest should have one of these suits, or one made after it as a pattern—they can be obtained in the shops for two or three dollars. They cover the entire person, even the shoes, and they make unnecessary the changing of clothing and the disinfection of the exposed parts of the body. The hands of the priest may be left bare after fastening the sleeves of the suit about the wrists, or he may wear surgeon's thin rubber gloves. In visiting a patient that has any of the contagious diseases mentioned in this chapter, the priest should never touch [{177}] his own face with his hands after he has entered the sick-room until he has washed them in a bichloride of mercury solution.
A ritual should not be taken into a smallpox room, because a book cannot be disinfected without rendering it useless. The priest should memorise the prayers and ceremonial, or write them out on paper which can be burned in the hospital or the patient's house.