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Leptospira require high humidity for survival but can remain alive in environments such as stagnant water or contaminated soil. The bacterium can be killed by temperatures of 50 °C (122 °F) and can be inactivated by 70% ethanol, 1% sodium hypochlorite, formaldehyde, detergents and acids. [28] Leptospira are also classified based on their serovar.
Leptospira (from Ancient Greek λεπτός (leptós) 'fine, thin, narrow, etc.' and Latin spira 'coil') [1] is a genus of spirochaete bacteria, including a small number of pathogenic and saprophytic species. [2] Leptospira was first observed in 1907 in kidney tissue slices of a leptospirosis victim who was described as having died of "yellow ...
Leptospira biflexa are a species of genus Leptospira consisting of pathogenic and free living saprophytic bacterial species. L. biflexa is a free-living saprophytic spirochete that survives exclusively in external environments and was the first saprophytic Leptospira genome to be sequenced unveiling a total of 3,590 protein-coding genes distributed across three circular replicons. [2]
Human infectious diseases may be characterized by their case fatality rate (CFR), the proportion of people diagnosed with a disease who die from it (cf. mortality rate).It should not be confused with the infection fatality rate (IFR), the estimated proportion of people infected by a disease-causing agent, including asymptomatic and undiagnosed infections, who die from the disease.
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Leptospira interrogans is a species of obligate aerobic spirochaete bacteria shaped like a corkscrew with hooked and spiral ends. [1] L. interrogans is mainly found in warmer tropical regions. The bacteria can live for weeks to months in the ground or water. [ 2 ]
The surge in flu cases also comes amid concerns about high infection rates for other viruses including RSV, COVID-19 and the gastrointestinal bug norovirus. Still, health officials say flu cases ...
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