Add caption Dr. Edward Jenner and his first reluctant vaccine patient/guinea pig. |
On May 14, 1794 British physician Dr. Edward Jenner inoculated James Phipps, the six year old son
of his gardener, with a dose of cow pox.
Later, he exposed the boy
to dreaded small pox and the boy seemed immune. He repeated the experiment on other members
of his community, including his own son Edward
and reported his findings to the
Royal Medical Society.
Within two years his sensational
findings were reported all over Europe and
vaccination (from the Latin vacca
for cow) was becoming common. Prior to this discovery up to 40% of those exposed to small pox died.
Vaccination was nearly 100%
effective against the disease and resulted
in virtually no deaths.
Soon in areas where vaccination was
standard the illness was eliminated. By 1974, after a world-wide vaccination campaign by the United Nations, small pox was declared
eradicated. Since then an isolated outbreak in Africa was brought under control by an emergency inoculation program.
Jenner was not the first to use
exposure from pox to build immunity from the disease latter. There are reports of inoculation, or “infusion” with mild forms of small pox
as far back as 1000 years ago in India.
The horrible and painful lesions of advanced small pox, the most dreaded and deadly communicable disease since the bubonic plague. |
Lady Mary Wortley Montagu, wife
of the British ambassador to the Ottoman Empire, described the custom in Turkey, where fatal epidemics of the disease were rare. Material made from the scabs of small pox victims was introduced
into the blood by several small cuts
over the body. The inoculated came down
with a mild form of the illness,
generally running fevers for two or
three days with a few of the characteristic
small pox lesions mild enough not to
leave scaring, and completely recovering in eight days. This method still had about 1.5% fatality rate
and made the patients quite ill for a few days, but compared to the huge number
of deaths ordinarily associated with small pox, the severity of the illness
even among survivors, and the life-long scarring from multiple deep lesions it
was preferable.
In 1721, shortly after receiving Lady Motagu’s report, a new small pox
epidemic broke out in Britain, interesting the Royal Family. They ordered tests on prisoners confirming her
observations and soon allowed their own children to be inoculated. The custom spread, especially among the
wealthy.
Even earlier In 1706 Massachusetts
Puritan minister Cotton Mather independently observed
that his slave, and other bonded Africans seemed immune to small pox and
discovered that they had undergone some form of inoculation in their native
lands before being captured by slave
traders. A trial of the inoculation
procedure revealed 4 deaths out of 244 (about 2.5%) as opposed to 844 deaths
among 5980 who contracted small pox unprotected. Inoculation became common first in Boston and then across the Colonies despite some vigorous opposition.
In 1777, after initial reluctance, General
George Washington ordered the inoculation of all of his troops who had not previously come down with the illness. He may have been encouraged by Dr. Benjamin
Rush of Philadelphia.
Jenner was not even the first person to note that exposure to cow pox
immunized against small pox. Many people
had noted that those who worked with
cows, including dairy maids,
seldom contracted the deadly disease. In
fact the storied associations of milk
maids with beauty may have been because they seldom bore the horrible scars
of small pox that afflicted so many.
As early as 1727 James Jura produced
statistical studies that showed that
those who had been exposed to cow pox were immune from small pox. A Dr.
Fewster published an article in the journal of the London Medical Society entitled Cow pox and its ability to
prevent smallpox in 1765. In
1774 Benjamin Jesty, a Dorset farmer inoculated his family with cow pox. Two or three others in Germany and Britain performed similar studies and experiments with
vaccination before Jenner.
But it was Jenner’s studies that broke out to a wide audience and
introduced vaccination on a wide scale which is why today he is regarded as the
Father of Immunization.
And Jenny McCarthy and assorted anti-science faddists are still mad at him.
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