This situation prompted the establishment of the Antitoxin Laboratory at the University of Toronto in May 1914. Some 36,000 children were involved in this carefully controlled study between 1926 and 1929, which conclusively proved that the toxoid reduced diphtheria incidence by at least 90% among those given three doses. The toxin does no harm to the horse, but stimulates an immune response and the white blood cells can be processed into antitoxin. In the United States, the medicine is available only through the Centers for Disease Control and Prevention, which imports it from Brazil, one of the few countries in the world that still manufactures it. The diphtheria bacterium was first identified in the 1880s and in the 1890s diphtheria antitoxin was developed in Germany to treat victims of the disease. What is the treatment? The disease was not given its official name until 1826 – diphtérite - derived from the Greek word for “leather” or “hide,” which describes the distinctive coating that appears in the throat of its victims. NICHOLAS BAKALAR. Diphtheria toxoid was the first modern vaccine, the first paediatric vaccine, and provided the foundation of public health immunization programs in Canada and elsewhere. This treatment is very important for respiratory diphtheria infections, but it is rarely used for diphtheria skin infections. Even with treatment, diphtheria can be fatal in 1 in 10 cases. The antitoxin is prepared after horses are injected with increasingly large doses of diphtheria toxin.

This silent home movie from the late 1920s, documents a visit to the Pasteur Institute in France by a scientist from Connaught Laboratories.

This rate of effectiveness was maintained in Toronto and elsewhere into the 1930s, but the Americans and British were not yet as enthusiastic.

Princess Alice, daughter of Queen Victoria, who died from diphtheria in 1878 at age 35.

Underscoring diphtheria’s broad threat was the dramatic experience of Princess Alice, daughter of Queen Victoria, who succumbed to diphtheria in 1878 at age 35. Until the late 19th century, diphtheria was a gruesome killer with no known cause and many ineffective treatments. In the ninth paragraph the anonymous reporter changed subjects.

Behring and Kitasato found that the blood of immune rats and mice had a destructive effect on the virus of diphtheria.” The reporter was apparently unaware that diphtheria is caused by a bacterium, not a virus, but in any case the treatment was as destructive to humans as it was to the germ — the article went on to report that two human patients transfused with the animals’ blood almost immediately dropped dead. Prevention . There was also the 2000 km mid-winter “mercy flight” in January 1929 between Edmonton and Fort Vermillion, Alberta to deliver antitoxin in the face of an outbreak. In 1917 this unique institution would expand and become known as Connaught Laboratories. Diphtheria is especially dangerous for young children. However, none of the other 60 members of the Grand Ducal household were affected. Today’s vaccine, recommended for all infants and for adults who have not been immunized, is manufactured by treating the diphtheria toxin with heat and chemicals, destroying its ability to produce disease but allowing it to stimulate the production of antibodies.

Wasting little time and while still at Ramon’s lab in Paris, FitzGerald sent a message back to Connaught asking Dr. Peter Moloney, the Lab’s expert on diphtheria toxin, to immediately start preparing the toxoid. The antitoxin is prepared after horses are injected with increasingly large doses of diphtheria toxin. Moloney’s subsequent development of the "Moloney Reaction Test" (an intradermal allergy test) ensured that the vaccine could be administered safely. As the disease advances, the toxin produced by the bacteria causes a thick film to develop in the throat that makes it increasingly difficult to breathe, ultimately strangling the patient to death in many cases. In 1924, there were 9,000 diphtheria cases reported in Canada, the highest ever, and it remained the number one cause of death of children under 14 until the mid-1920s, killing some 2,000 each year despite the availability of diphtheria antitoxin. Diphtheria patients are usually kept in isolation until they are no longer capable of infecting others, usually about 48 hours after antibiotic treatment begins. The treatment of diphtheria involves early administration of antibiotics; antitoxin, made in horses, neutralizes Corynebacterium exotoxin that has not bound to human tissue. That day a Page 1 article about events in Germany reported that “Drs. There were also heartbreaking decisions for parents and doctors, faced with a limited supply of antitoxin, to choose which sick child should get it. Knowing the utter futility of the various methods which had been tried to get rid of the membrane in diphtheria or to combat the morbid condition, due, as we know now to the toxin, I felt as did every physician of that day, as if my hands were literally tied and I watched the death of that beautiful child feeling absolutely helpless to be of any assistance.” (“Diphtheria: A Popular Health Article,” The Public Health Journal 18 (Dec. 1927): 574. In 1613, Spain experienced an epidemic of diphtheria.

Medical reports of a deadly “strangulation” disease first appeared in the early 1600s, emerging as a greater threat with the growth of cities and easier person-to-person spread. After the break-up of the former Soviet Union in the late 1980s, very low vaccination rates lead to an explosion of diphtheria cases in the early 1990s, mostly among adults who had not been adequately immunized. Hours of Operation, Location & Accessibility, "Slaying the Dragon" - Canadian Diphtheria Toxoid Trials, Preparing a Fresher Generation of Pertussis Vaccine. Among the most famous such efforts was the 1065 km “Great Race of Mercy” dog sled journey in 1925 to bring antitoxin to Nome, Alaska. FitzGerald’s team focused next on Toronto with a more sophisticated evaluation of the toxoid. Until 1914, diphtheria antitoxin had to be imported into Canada at prices often beyond the means of families most vulnerable to the disease. “A congress of German naturalists and physicians opened its sessions in Vienna on Monday,” he wrote, and then went on to discuss Emil von Behring’s “discovery of a cure for diphtheria by the inoculation of the patient with serum blood.”. This sometimes prompted heroic efforts to get antitoxin to where it was urgently needed. Ramon was able to test diphtheria toxoid and demonstrate its antigenic value, but only on a small scale. The diphtheria bacterium was first identified in the 1880s and in the 1890s diphtheria antitoxin was developed in Germany to treat victims of the disease. She literally choked to death, remaining conscious till the last moment of life. In the spring of 1913, Behring developed a vaccine against diphtheria. Though mostly a disease associated with the poor and a particular threat to children, diphtheria did not discriminate by class and age, and its cause, route of spread and cure remained a mystery until the last part of the 19th century. But progress was fast. Untreated, diphtheria fatality rates range between 5% and 10%, and in children under 5 and adults over 40, can be as high as 20%. Diphtheria still exists in many parts of the world and without population-wide vaccination programs it could easily come back to Canada. In 1874, The New-York Times printed an advertisement for a medicine that would cure not only diphtheria, but also corns, bunions and “pains in the loins and back.” The same year, a news article began, “There has been spreading for some time an idea or hypothesis among the more philosophic medical men, and among the thoughtful ‘laity,’ that many species of disease have their sources in, and are scattered by, seeds or germs.”. It was thought that the disease could be spread though the innocent kiss between a mother and child, neither showing symptoms more serious than a sore throat, yet a “kiss of death” harbouring and unknowingly spreading “the strangler.”. It highlights the origin of the Institute after the discovery of the Pasteur Rabies Vaccine Treatment, and then illustrates the production of diphtheria antitoxin and diphtheria toxoid. But it was Dec. 7, 1890, before The Times first hinted there might be a real cure for diphtheria. In 1874, The New-York Times printed an advertisement for a … Harper's Weekly, v. 39, p. 8. Characterized as “The Strangling Angel of Children,” diphtheria is a bacterial infection caused by Corynebacterium diphtheria, transmitted through close contact with an infected individual, usually via respiratory secretions spread through the air. Creator: National Library of Medicine Diphtheria treatment today involves use of antibiotics to kill the diphtheria bacteria plus antitoxin to neutralize the toxins secreted by the bacteria. However, by the early 1940s the British billboards boldly stressed the possibilities of diphtheria toxoid: “If Canada can do it, why can’t we?”. Using antibiotics to kill and get rid of the bacteria. The Lab was pioneered by the unique vision of Dr. John G. FitzGerald to be a self-supporting source of not only antitoxin, but also other essential public health products, including rabies and smallpox vaccine, produced as a public service for free distribution through provincial health departments. The toxin does no harm to the horse, but stimulates an immune response and the white blood cells can be processed into antitoxin. If given in time and in large enough doses, antitoxin could save lives, but it did not prevent diphtheria, nor stop it from spreading. The results in Hamilton were particularly significant, the toxoid bringing diphtheria incidence and deaths down very sharply. Because the vaccine is so effective and so widely used, diphtheria is rare in industrialized countries, but when it does occur it can be treated with diphtheria antitoxin. After preliminary studies, by October 1925 the new toxoid was ready to be given to children in six provinces, primarily in Ontario, where a total of 15,000 Brantford, Windsor and Hamilton children were given two doses.

Diphtheria is treated with antibiotics as well as with a diphtheria antitoxin.

On Oct. 1, 1894, a headline on Page 2 read “Repression in the Reichstag,” over a story about European politics. Diphtheria treatment today involves: Using diphtheria antitoxin to stop the toxin made by the bacteria from damaging the body.

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