Question

Include genus and species names (i.e. binomial nomenclature) and common names whenever possible.

Also name the disease and describe it, including the signs and symptoms associated with it.

1. Describe Trichomoniasis.

How common is this disease? What is the main mechanism of transmission?

Answer 1

Trichomoniasis

• Trichomoniasis is a very common sexually transmitted disease.
• It is caused by infection with a protozoan parasite called Trichomonas vaginalis.
• Common name is trich
• Genus is Trichomonas
• Species is vaginalis

How common is this disease??

• Trichomoniasis is the most common curable Sexually transmitted disease
• only about 30% develop any symptoms of trichomoniasis.
• Infection is more common in women than in men.
• Older women are more likely than younger women to have been infected with trichomoniasis.

Mechanism of transmission

• It travels from person to person through genital contact during sex.
• In women, the organism causes an infection in the vagina, urethra, or both.
• In men, the infection only happens in the urethra. Once the infection begins, it can easily be spread through unprotected genital contact.
• Trich is not spread through normal physical contact such as hugging, kissing, sharing dishes, or sitting on a toilet seat.
• In addition, it can’t be spread through sexual contact that doesn’t involve the genitals
• It typically transmitted through vaginal, oral, or anal sex with an infected individual.
• It can also be passed from a mother to her baby at birth, as evidenced by the discovery of the parasite in the newborn's lungs.

signs and symptoms.

• About 70% of infected people do not have any signs or symptoms.
• When trichomoniasis does cause symptoms, they can range from mild irritation to severe inflammation.
• Some people with symptoms get them within 5 to 28 days after being infected.
• Others do not develop symptoms until much later. Symptoms can come and go.

Men with trichomoniasis may notice:

• Itching or irritation inside the male genetalia;
• Burning after urination or ejaculation;
• Discharge from the male genetalia

Women with trichomoniasis may notice:

• Itching, burning, redness or soreness of the genitals;
• Discomfort with urination;
• A change in their vaginal discharge (increased volume) that can be clear, white, yellowish, or greenish with an unusual fishy smell.