The conquest of typhus
Http://www.thebeijingnews.com source: Beijing News
• 1909, Dr. Nicole France through studies of typhus of infection, the final found lice in the role of disease spread.
The doctor is therefore obtained the 1928 Nobel Prize.Some are good, 1494, France soldiers in the war in Italy, died in a kind of "fever" soldiers than were killed in the battle, the soldiers of the typhus fever.
1577, United Kingdom Oxford called RowlandJenks person in court.
Trial has attracted a lot of spectators, the Court was very crowded, the smell. Finally, Rowland was found guilty, the penalty is being cut off his ears, he is said to have lived for 30 years. But spectators but no such luck, a lot of people have a fever, a large number of Red points, and then killed. This disease epidemic in Oxford, eventually leading to more than 500 people dead, including 100 Oxford faculty and students, even judge I have not been spared. This is the famous "black Court."Later, people knew that the perpetrators are "epidemic typhus", also known as "prison fever", disease transmitted the lice, or rather by lice faeces-borne diseases.
Lice do not like fleas, mosquitoes, and do not fly or jump, climb, generally only be parasitic in human clothes sewing, like wool and cotton underwear, settle in the clothes of gap, hungry to man vampire, happy just sew baby clothes. If parasite with typhus fever, fleas also because the digestive system injuries soon died.However, if this lice deathbed climb to the top of the other, and the unlucky person, excretion, he would feel the i
tch. Then he usually grab tickling, so that the disease will go down skin small break into his body. At the same time, the lice faeces stem, turned into dust floating in the air, or respiratory ways of infection to others.Typhus fever often occur in poor living conditions, such as prisons, cabin, war and famine is also easy to cause it's popular.
History's most famous typhus epidemic occurred in 1812, Napoleon armies to attack Russia led by hundreds of thousands.
In the meantime, many soldiers had this disease and death. Entered Moscow, French only less than 10 million people. Moscow is a empty city, hunger, cold, and the soldiers were huddled together for the night cold, accelerates the spread of the outbreak of typhus, Napoleon defeated back to France, 60 million army only 3 million people, including fighting ability but thousands of people.1909, France doctors Nicole (CharlesNicolle) found that a person admitted to hospital or prison, undress, bathing clothes, hair and beard shaving, he would not have become the typhus fever infection.
He thus found the lice in the role of disease spread, and won the Nobel Prize in 1928.1909, the United States pathologists rickettsia (HowardT.Ricketts) first found in Rocky Mountain spotted fever's unique pathogen is closer to the prokaryotic bacteria.
Mexico City 1909 typhus epidemic, so he went to Mexico City, and the successful separation of the pathogens, unfortunately, he has been infected and die from this disease, the cause of typhus pathogens called Creek rickettsiosis (Rickettsia). Brazil scientists hope to Wade, handsome grams (j.m.vonprowazek) also independent discovery of typhus pathogens, he also died in his research, at times, people have also put the rickettsia prowazekii ledeburite called rickettsia's body, to commemorate the two dedicated for disease research.The first world war, in Europe there are millions of
people died from typhus. 1937 the first advent of typhus vaccine, but really very effective control of the epidemic by dichlorvos and spray cans of invention and wide application of substantial application of antibiotics, typhus had effective control. Nevertheless, now in Mexico and Central America in the mountains, many Asian countries, there are endemic typhus.□ Green Party (United States science writer)
No comments:
Post a Comment