Thursday, January 26, 2023

The father of immunology

Edward Jenner, sometimes referred to as the father of immunology, died 200 years ago today. Though but a family doctor and surgeon, he managed to pioneer the use of cowpox as a vaccine against smallpox. A diary he kept for a short time in 1812, published in the Annals of Medical History journal, is freely available online - for those with an interest in such medical matters!

Jenner was born in 1749 in Berkeley, Gloucestershire, the eighth of nine children. His father was the vicar of Berkeley. He went to school at Wotton-under-Edge and Cirencester before being apprenticed, age 14, to a surgeon. He continued his training at St George’s Hospital, London, under John Hunter, one of the most prominent surgeons in the capital. Subsequently, he set up - very successfully - as a family doctor and surgeon at premises in Berkeley. He married Catherine Kingscote in 1788, and they had three children. That same year he was elected fellow of the Royal Society following publication of a study on the life of cuckoos. In 1792, after twenty years’ experience of general practice and surgery, he obtained a Doctor of Medicine degree from the University of St Andrews.

Jenner is best remembered for his pioneering work on a vaccine for smallpox - a mass killer at the time - and is thus often referred to as the father of immunology. Indeed, he originated the very word vaccine in his 1798 paper - Inquiry into the Variolae vaccinae known as the Cow Pox (in which he described the protective effect of cowpox against smallpox - Variolae vaccinae translating as pustules of the cow). When his ongoing work with the vaccine prevented him from general practice, he petitioned parliament, and was granted substantial funds to continue his research. In 1821, he was appointed physician extraordinary to King George IV, and he was also made mayor of Berkeley and a justice of the peace. He died on 26 January 1823. More biographical information is available from Wikipedia, the Duke University Libraries, Encyclopaedia Britannica and The Jenner Institute

Duke University Libraries hold a significant number of Jenner’s papers, including a 188-page diary maintained by Jenner in 1811 and the fall of 1812. Primarily it contains notes on patients and their treatments for various illnesses, from syphilis to gout to heart ailments (including prescriptions) along with records of many vaccinations. The contents of the diary are further described: ‘There is a note of receipt of a letter (1812 Sept 12) from Dr. Alex Crichton stating that vaccination flourished throughout the Russian Empire. Also contains reports on the dissection of organs from a cow, horse, and sheep, along with two sets of notations regarding diabetes, and one on "pulmonary affections”. There are occasional notes with weather observations, recipes, lists of letters written, patient charges or payments, and a few comments on his house repairs using stucco. At the end of the volume are a number of poems and epigrams.’

The full text of the diary was edited by C. Doris Hellman, B.A. and published in the Annals of Medical History (July 1931) as An Unpublished Diary of Edward Jenner (1810-1812). This can freely read online at the website of the National Library of Medicine. Much of the diary will only make sense to medical readers but here are a couple of extracts as they appeared in the Annals of Medical History.

10 September 1812
‘Visited Capt. Hamstead. His cough is still teasing - pulse 92 - expectoration scanty

T. Benzoes bistervede die - Pulv Jacob: gr iij omni nocte - Rd £6.60

Consulted by Mrs W at Stroud. She appears to labor under the secondary symptoms of Syphilis - Her legs exhibit the correct representation of Willan’s - She has ulcerated Tonsil & pains in the Joints and Knees. Rd £2.20

Maria Gayner from Alkington Work house was vaccinated with a limpid virus taken from the edge of a pustule on the 12th day (exempted . . . grate) The pustule was at the time nearly converted into a Scab. It produced no effect - Now, the same Scab diffused thro’ water would produce the effect of matter on the 8th day; therefore it must necessarily contain the early-formd virus in this concreted form.’

16 October 1812
‘Wind - West - fine morning Little storm at midday.

In the evening about 8 oClock I observed a remarkable Halo around the Moon. It’s diameter was so great that it appeard to occupy nearly on sixth part of the Heavens - It was rather faint. The position of the moon was a little Eastward of the South.

Examind at the Kennel a Horse that died yesterday as it was supposd of the Stagger. On dissection there were the same appearances as in the dog that dies of Distemper. One Lobe of the Lungs was in the highest state of inflammation - and the whole of the Membranes which line the nasal Bones were much inflamed. This I have always observd in Horses which have died of the Staggers.

11 December 1812
‘Wind north 9 am - Frost - a little sleet has fallen

Hanh. Baker Highst Field

Wm. Baker Do

Inserted fresh Vaccine Matter into the arm of the Mother Mary Baker Wm Nash one of the Children vaccinated Friday the 4th has taken the cow pox in the most regular manner. This child was vaccinated repeatedly with fluid matter & at the same time three of his on home it took effect, but not on the Child William, on whom there appeared the Red Gum very generally. The operation was twice repeated, but without the least effect.’

23 December 1812
‘Visited the Rev Mr J. At Frampton - found him not only anasarcous but affected with ascites - the Legs largely ulcerated -

Coal dust small qu: of Clay. Coal Tar - Mix or Brown Paper dippd in Coal dust & Coal Tar.’

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