Overview Sexually transmitted diseases (STDs) are caused by sexually transmitted infections (STIs). They are spread mainly by sexual contact. STIs are caused by bacteria, viruses or …

Mar 12, 2024 · Sexually transmitted diseases are infections spread mainly by contact with genitals or bodily fluids. Also called STDs, STIs or venereal disease, sexually transmitted infections are …

Aug 22, 2025 · Find out more about this rare viral infection, the possible symptoms in humans, treatment options and how to prevent getting or spreading the virus.

Jan 5, 2024 · 性传播疾病（STD）是由于性传播感染（STI）引起的，主要通过性接触传播。STI 是由细菌、病毒或寄生虫引起的。性传播感染可以通过血液、精液或阴道和其他体液在人与人 …

This common sexually transmitted infection often causes no symptoms. Learn more about treatment, prevention and possible complications.

Mar 24, 2023 · No, the virus that causes Ebola is not transmitted through the air. Unlike a cold or the flu, the Ebola virus is not spread by tiny droplets that remain in the air after an infected …

Jun 13, 2025 · The rabies virus is usually transmitted through a bite. Animals most likely to transmit rabies in the United States include bats, coyotes, foxes, raccoons and skunks. In …

This common sexually transmitted infection (STI) can lead to serious health problems if left untreated. Learn more about symptoms, treatment and prevention.

Jul 1, 2025 · Trichomoniasis is a common sexually transmitted infection. A parasite causes it. The parasite can spread through genital touching and sex without a condom. In women, …

Jun 17, 2025 · A cytomegalovirus (CMV) infection is a condition caused by a common virus. The CMV virus stays in the body for life after infection. CMV spreads from person to person …