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bacteria
The bacteria that can change shape call pleomorphic
The shape of a virus that attacks bacteria is typically cylindrical or polyhedral. These viruses that infect bacteria are known as bacteriophages and come in various shapes and sizes.
I'm not sure what you mean by "thypus." If you meant "typhus," it is a group of infectious diseases caused by Rickettsia bacteria. Symptoms can include high fever, headache, and rash. Typhus can be transmitted to humans through the bites of infected insects such as lice, fleas, or ticks.
Nitrogen-fixing bacteria can have various shapes, including rod-shaped (bacilli), spherical (cocci), or spiral (spirilla). The shape of these bacteria can vary depending on the species and environmental conditions in which they grow.
bacteria
bacteria
The causative bacteria is called Rickettsia typhi.
The causative bacteria is called Rickettsia typhi.
Typhus is a disease caused by bacteria carried by some ticks and lice. They are spread by them biting an animal.
Typhus, caused by Rickettsia bacteria, does not involve typical "typhus cells," as these bacteria are obligate intracellular parasites. Rickettsia species do possess plasmids, although they are not as common or well-studied as those found in other bacteria. Plasmids in Rickettsia can carry genes that contribute to their virulence and adaptation to host environments. Thus, while Rickettsia may have plasmids, the term "typhus cells" is not applicable in the traditional sense.
Typhus
The bacteria that causes typhus is Rickettsia, these are intracellular parasites - meaning that they survive within the cells of a human body. The bacteria is usually transmitted through the feces of lice and fleas. When a flea or lice carrying the bacteria bites a human, the person will usually scratch the bite - allowing the feces containing the bacteria to enter the skin, infecting that person.
Typhus is a serious infectious disease caused by bacteria transmitted by lice or fleas. For example, during the outbreak, many soldiers suffered from typhus due to unsanitary conditions in the trenches. Public health officials worked tirelessly to control the spread of typhus in the affected areas.
Typhus has appeared since medieval times. The causative bacteria Rickettsia are named after Howard Taylor Ricketts (1871-1910), who studied and eventually died of typhus.
Soldiers in WWI contracted typhus from poor sanitation and crowded quarters during the trench warfare. Typhus is caused by bacteria that are spread by human body lice and from lice on rats and mice. The largest epidemics of Typhus were actually in the German concentration camps of World War 2.
Anne Frank died from typhus, a disease caused by bacteria transmitted through lice. She contracted typhus while in the Bergen-Belsen concentration camp during World War II.