In this set are terrible diseases that have haunted mankind for thousands of years. However, thanks to the development of medicine most of these diseases can be cured or prevented. Let's learn more about these viruses.

Plague disease caused by the bacterium plague bacillus Yersinia pestis. There are two main forms of plague: bubonic and pneumonic. When lymph nodes are affected first, with the second - the lungs. Without treatment in a few days begins fever, sepsis, in most cases, death occurs. than in victory. "The first case reported July 26, 2009. Patient appealed to doctors in critical condition and died on July 29. 11 people who had contact with patients were hospitalized with symptoms of fever, two of them died, others feel satisfactory "- something like this message from China, now looks information on outbreaks of plague. Message from some European cities in 1348 would look like this: "In Avignon plague struck all, tens of thousands of them were no survivors. Corpses from the streets no one to clean up. " Everything in the world during that pandemic killed 40 to 60 million people. Planet experienced three plague pandemic, "Justinian" back in. 551-580 years, "Black Death" and the 1346-1353 pandemic's late XIX - early XX century. Periodically flared and local epidemics. With quarantine and disease fighting - in the era of late dobakterialnuyu - carbolic disinfectant dwellings. first vaccine at the end of the XIX century created by Vladimir Khavkin - man fantastic biography, a Jew from Odessa, Mechnikov student, former Narodovolets thrice goes to prison and expelled because of the policy of the Odessa University. In 1889, after Mechnikov he emigrated to Paris, where he began first as a librarian and then as an assistant at the Institut Pasteur. Khavkin vaccine doses used by tens of millions around the world until the 40-ies of XX century. Unlike smallpox vaccine, it is not able to destroy the disease, and the results were much worse: it reduces the incidence of 2-5 times, and mortality at 10, but it is still used, since there was nothing else. This treatment appeared only after the Second World War, when Soviet doctors used svezheizobretenny streptomycin at liquidation plague in Manchuria in 1945-1947 years. Actually, now used against plague all the same streptomycin, and the population in the outbreak were immunized with a live vaccine developed in the 30s. Today annually recorded up to 2.5 thousand cases of plague. Mortality - 5-10%. For decades, no epidemics, no major outbreaks. Difficult to say how serious role in this is actually treated, and how much - the system identification of patients and their insulation. After the plague before leaving people for decades.