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In the 1990s it was shown that there are several species of Chlamydia. Chlamydia trachomatis was first described in historical records in Ebers papyrus written between 1553 and 1550 BC. [48] In the ancient world, it was known as the blinding disease trachoma. The disease may have been closely linked with humans and likely predated civilization ...
A viral infection does not always cause disease. A viral infection simply involves viral replication in the host, but disease is the damage caused by viral multiplication. [5] An individual who has a viral infection but does not display disease symptoms is known as a carrier. [17] Mechanisms by which viruses cause damage and disease to host cells
Some bacteria, such as Streptococcus pyogenes, Staphylococcus aureus and Pseudomonas aeruginosa, produce a variety of enzymes which cause damage to host tissues.Enzymes include hyaluronidase, which breaks down the connective tissue component hyaluronic acid; a range of proteases and lipases; DNases, which break down DNA, and hemolysins which break down a variety of host cells, including red ...
Virulence is a pathogen's or microorganism's ability to cause damage to a host. In most cases, especially in animal systems, virulence refers to the degree of damage caused by a microbe to its host. [1] The pathogenicity of an organism—its ability to cause disease—is determined by its virulence factors.
Chlamydia research [1] is the systematic study of the organisms in the taxonomic group of bacteria Chlamydiota (formerly Chlamydiae), the diagnostic procedures [2] to treat infections, the disease chlamydia, infections caused by the organisms, the epidemiology of infection and the development of vaccines. The process of research can include the ...
Chlamydia infections are the most common bacterial sexually transmitted diseases in humans and are the leading cause of infectious blindness worldwide. [2] Species include Chlamydia trachomatis (a human pathogen), Ch. suis (affects only swine), and Ch. muridarum (affects only mice and hamsters). [3]
Bacteria involved in causing and treating cancers. Cancer bacteria are bacteria infectious organisms that are known or suspected to cause cancer. [1] While cancer-associated bacteria have long been considered to be opportunistic (i.e., infecting healthy tissues after cancer has already established itself), there is some evidence that bacteria may be directly carcinogenic.
Chlamydia, or more specifically a chlamydia infection, is a sexually transmitted infection caused by the bacterium Chlamydia trachomatis. [3] Most people who are infected have no symptoms. [ 1 ] When symptoms do appear, they may occur only several weeks after infection; [ 1 ] the incubation period between exposure and being able to infect ...