which organism is responsible for the development of syphilis course hero

What is the organism responsible for syphilis?

Treponema pallidum, the bacteria that cause syphilis. Syphilis is a sexually transmitted disease (STD) caused by the bacterium Treponema pallidum. It is transmitted from person to person via direct contact with a syphilitic sore, known as a chancre.

What are the causative agents of syphilis and gonorrhea?

Sexual transmission of the causative organism, the spirochete Treponema pallidum, results in the lesion known as a chancre at the infection site, usually after an incubation period of 10-90 days.

What is the causative agent of endemic syphilis?

Endemic syphilis is caused by T pallidum subsp endemicum. Endemic syphilis is transmitted through direct or indirect skin-to-skin or mouth-to-mouth contact with the infected lesion. It occurs predominantly in children aged 2-15 years.

What is the difference between gonorrhoea and syphilis?

Syphilis also is caused by bacteria. It differs from gonorrhea and chlamydia because it occurs in stages. It is more easily spread in some stages than in others.

How did syphilis spread to humans?

The first well-recorded European outbreak of what is now known as syphilis occurred in 1495 among French troops besieging Naples, Italy. It may have been transmitted to the French via Spanish mercenaries serving King Charles of France in that siege. From this centre, the disease swept across Europe.

Where is the virus of syphilis found?

A person with primary syphilis generally has a sore or sores at the original site of infection. These sores usually occur on or around the genitals, around the anus or in the rectum, or in or around the mouth.

What is the scientific name for syphilis?

Syphilis (/ˈsɪfɪlɪs/) is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum.

What is the host of Treponema pallidum?

Humans are the only natural host for T pallidum subsp pallidum, and infection occurs through sexual contact. The organisms penetrate mucous membranes or enter minuscule breaks in the skin.

What virus causes gonorrhea?

Gonorrhea is a sexually transmitted disease (STD) caused by infection with the Neisseria gonorrhoeae bacterium. N. gonorrhoeae infects the mucous membranes of the reproductive tract, including the cervix, uterus, and fallopian tubes in women, and the urethra in women and men. N.

What is syphilis chlamydia and gonorrhea?

Chlamydia, gonorrhoea and syphilis are all caused by bacteria and they are generally curable with antibiotics. However, these STIs often go undiagnosed and they are becoming more difficult to treat, with some antibiotics now failing as a result of misuse and overuse.

Can you have syphilis and gonorrhea at the same time?

PENICILLIN IN TREATMENT OF SIMULTANEOUS INFECTIONS OF SYPHILIS AND GONORRHEA. Penicillin is the first therapeutic agent which has been found to be effective against both syphilis and gonorrhea.

What are the symptoms of gonorrhea and chlamydia and syphilis?

What are the symptoms of gonorrhea and chlamydia?A yellow vaginal discharge.Painful or frequent urination.Vaginal bleeding between menstrual periods.Rectal bleeding, discharge, or pain.

What was the first drug to treat syphilis?

The first drug to attack the spirochete directly—arsphenamine, an arsenic compound commonly known as Salvarsan or 606 —was developed in 1909 by the German bacteriologist Paul Ehrlich. Much was learned about the course of the disease from the infamous Tuskegee syphilis study (1932–72). The use of antibiotics developed in 1943 after the discovery by the American physician John Friend Mahoney and others that penicillin was an effective treatment for nonadvanced cases of syphilis. Since that time the number of syphilis cases has declined considerably, particularly in developed countries.

How does syphilis affect a pregnant woman?

Syphilis is transmitted to the fetuses of untreated pregnant women. This is most likely to occur when the woman becomes infected during pregnancy, though untreated infection prior to pregnancy also poses a risk. About one-fourth of affected fetuses die and are spontaneously aborted, while another one-fourth die soon after birth. Those infants who survive may be born with rashes, pneumonia, and skeletal abnormalities. If congenital syphilis is not treated, blindness, deafness, perforation of the palate, inflammation of the liver, and involvement of the central nervous system may ensue. On rare occasions a congenitally syphilitic infant may appear normal at birth and show no symptoms until adolescence, when manifestations of late-stage syphilis usually appear.

Is syphilis a sexually transmitted disease?

syphilis, systemic disease that is caused by the spirochete bacterium Treponema pallidum. Syphilis is usually a sexually transmitted disease, but it is occasionally acquired by direct nonsexual contact with an infected person, and it can also be acquired by an unborn fetus through infection in the mother. A related group of infections, collectively known as treponematosis or nonvenereal syphilis, is not spread by sexual contact and is localized in warm parts of the world where crowded conditions and poor health care favour its development.