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Folliculitis is caused by bacterial infection, injury, virus, or fungi. It can occur anywhere on the body where there are hair follicles (so everywhere except the lips, eyelids, palms, and soles ...
Sycosis vulgaris is a cutaneous condition characterized by a chronic infection of the chin or bearded region. [1]: 252 [2] The irritation is caused by a deep infection of hair follicles, often by species of Staphylococcus or Propionibacterium bacteria. [3] It usually affects men who shave as this results in bacterial inoculation all over the face.
There are different stages of hair growth: anagen, the growing phase; catagen, the transitional phase where hair starts to release from the follicles; telogen, the resting phase; and exogen, the ...
A boil, also called a furuncle, is a deep folliculitis, which is an infection of the hair follicle. It is most commonly caused by infection by the bacterium Staphylococcus aureus, resulting in a painful swollen area on the skin caused by an accumulation of pus and dead tissue. [1] Boils are therefore basically pus-filled nodules. [2]
Hair diseases are illnesses that impact the persistence and regular growth of hair. Types of hair diseases include folliculitis , hirsutism , hypertrichosis , hypotrichosis ( alopecia ), Menkes kinky hair syndrome , monilethrix , and piedra .
The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus. The new ...
The following outline is provided as an overview of and topical guide to concepts related to infectious diseases in humans.. Infection – transmission, entry/invasion after evading/overcoming defense, establishment, and replication of disease-causing microscopic organisms (pathogens) inside a host organism, and the reaction of host tissues to them and to the toxins they produce.
“Influenza viruses use birds as their natural reservoir, and certain strains have become adapted to transmission and infection of mammals (especially pigs and humans),” Winslow says.