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Chancroid is a bacterial infection caused by the fastidious Gram-negative streptobacillus Haemophilus ducreyi. This pathogen is highly infectious [ 3 ] . It is a disease found primarily in developing countries , most prevalent in low socioeconomic groups, associated with commercial sex workers.
Haemophilus ducreyi is a Gram-negative coccobacillus, and has a shape between a spherical coccus [6] and a rod-shaped bacterium. [1] This species of bacterium has pili, fine and tangled appendages composed predominantly of protein, that allow bacteria to attach to surfaces, including those of cells.
Similarities between the conditions chancre and chancroid: [3] Both originate as pustules at the site of inoculation, and progress to ulcerated lesions; Both lesions are typically 1–2 cm in diameter; Both lesions are caused by sexually transmissible organisms; Both lesions typically appear on the genitals of infected individuals
A sexually transmitted infection (STI), also referred to as a sexually transmitted disease (STD) and the older term venereal disease (VD), is an infection that is spread by sexual activity, especially vaginal intercourse, anal sex, oral sex, or sometimes manual sex.
The genus includes commensal organisms along with some significant pathogenic species such as H. influenzae—a cause of sepsis and bacterial meningitis in young children—and H. ducreyi, the causative agent of chancroid. All members are either aerobic or facultatively anaerobic. This genus has been found to be part of the salivary microbiome. [5]
All were exposed to a virus that causes the common cold. “It turned out that both groups got equal rates of infection,” he says. Myth #3: Vitamin C can prevent a cold.
Genital herpes ulcers. A genital ulcer is an open sore located on the genital area, which includes the vulva, penis, perianal region, or anus. Genital ulcers are most commonly caused by infectious agents (fungal infections, secondary bacterial infections, or sexually transmitted infections such as genital herpes, syphilis or chancroid).
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