1909 in science

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The year 1909 in science and technology involved some significant events, listed below.

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Astronomy

Biology

Chemistry

Geology

Mathematics

Paleontology

Physics

Physiology and medicine

Technology

Events

Awards

Births

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<span class="mw-page-title-main">Chagas disease</span> Mammal parasitic disease

Chagas disease, also known as American trypanosomiasis, is a tropical parasitic disease caused by Trypanosoma cruzi. It is spread mostly by insects in the subfamily Triatominae, known as "kissing bugs". The symptoms change over the course of the infection. In the early stage, symptoms are typically either not present or mild, and may include fever, swollen lymph nodes, headaches, or swelling at the site of the bite. After four to eight weeks, untreated individuals enter the chronic phase of disease, which in most cases does not result in further symptoms. Up to 45% of people with chronic infections develop heart disease 10–30 years after the initial illness, which can lead to heart failure. Digestive complications, including an enlarged esophagus or an enlarged colon, may also occur in up to 21% of people, and up to 10% of people may experience nerve damage.

The year 1903 in science and technology involved some significant events, listed below.

<span class="mw-page-title-main">1905 in science</span> Overview of the events of 1905 in science

The year 1905 in science and technology involved some significant events, particularly in physics, listed below.

The year 1912 in science and technology involved some significant events, listed below.

The year 1918 in science and technology involved some significant events, listed below.

The year 1919 in science and technology involved some significant events, listed below.

The year 1927 in science and technology involved some significant events, listed below.

The year 1898 in science and technology involved some significant events, listed below.

The year 1868 in science and technology involved some significant events, listed below.

The year 1857 in science and technology involved some significant events, listed below.

The year 1928 in science and technology involved some significant events, listed below.

<span class="mw-page-title-main">Carlos Chagas</span> Brazilian doctor and scientist (1879–1934)

Carlos Justiniano Ribeiro Chagas, or Carlos Chagas, was a Brazilian sanitary physician, scientist, and microbiologist who worked as a clinician and researcher. Most well known for the discovery of an eponymous protozoal infection called Chagas disease, also called American trypanosomiasis, he also discovered the causative fungi of the pneumocystis pneumonia. He described the two pathogens in 1909, while he was working at the Oswaldo Cruz Institute in Rio de Janeiro, and named the former Trypanosoma cruzi to honour his friend Oswaldo Cruz.

<i>Trypanosoma cruzi</i> Species of parasitic euglenoids (protozoans)

Trypanosoma cruzi is a species of parasitic euglenoids. Among the protozoa, the trypanosomes characteristically bore tissue in another organism and feed on blood (primarily) and also lymph. This behaviour causes disease or the likelihood of disease that varies with the organism: Chagas disease in humans, dourine and surra in horses, and a brucellosis-like disease in cattle. Parasites need a host body and the haematophagous insect triatomine is the major vector in accord with a mechanism of infection. The triatomine likes the nests of vertebrate animals for shelter, where it bites and sucks blood for food. Individual triatomines infected with protozoa from other contact with animals transmit trypanosomes when the triatomine deposits its faeces on the host's skin surface and then bites. Penetration of the infected faeces is further facilitated by the scratching of the bite area by the human or animal host.

<span class="mw-page-title-main">Nifurtimox</span> Anti-parasitic medical drug

Nifurtimox, sold under the brand name Lampit, is a medication used to treat Chagas disease and sleeping sickness. For sleeping sickness it is used together with eflornithine in nifurtimox-eflornithine combination treatment. In Chagas disease it is a second-line option to benznidazole. It is given by mouth.

Antonio Carini (1872–1950) was an Italian physician, bacteriologist and professor. He worked in the public health services of São Paulo, Brazil for over forty years. Carini showed that rabies of herbivores could be transmitted by bats, and discovered a parasitic fungus, which causes pneumocystosis.

Events from the year 1868 in Germany.

References

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