Currently there are "8 comments" on this Question:

  1. Shaquita says:

    Jan 21, 2009 How did STDs start? Did just ONE person get them and then spread them all over ? And how did he/she get an STD to begin with? 3 years ago

  2. Joanne says:

    Mutations that allowed viruses to jump from animals to humans, just as the flu can often jump between birds, pigs, and humans. For example, HIV is just a variant of SIV (simian immunodeficienty virus) which infects some species of apes and old world monkeys.That doesnt mean that people had sex with animals. The infection can spread between blood, and the likely account is that people were gathering bushmeat. They carved up a dead ape (a common practice in some of the poorer African nations), and somebody cut him or herself in the process. It was little known when it first happened, but once cases reached the affluent nations (and the mass media), knowledge became widespread.With the exception of genetic disease, almost all human diseases have an animal originator or reservoir. Small pox was recently confirmed to be a variant of sheep pox (not cow pox as many people have believed for years). Cows can get a tuberculosis infection similar to humans. Cats carry the toxoplasmosis gandii parasite. Only syphilis seems to be the only real STD that only affects human beings…but sirochaete bacteria are not uncommon by any means, and variants in the same family of bacteria are already responsible for yaws and bejel.Its difficult to track if the rate of new STDs is increasing or not. For one, the epidemiological record doesnt go very far back, so any apparent trends need to be regarded with great skepticism due to the limited sample size. Furthermore, as medical technology increases, we should expect to catch more illnesses that wouldnt have been diagnosed in the past, and due to the increasingly pervasive mass media, we would hear about events that we wouldnt have known about in past generations. Finally, as the world becomes more urbanized, infections are likely to become more rampant simply because we live in closer proximity to one another day after day. That much is in the historical record. For example, every conquerer of Rome found his people suddenly afflicted by terrible ailments shortly afterwards–likely due to contact with Romans whose ancestors had the right types of immune system defenses to have survived the last outbreak and pass on the very genes that made them more resistant. Theres also a story in the Koran about Christian forces from Ethiopia trying to wipe out Mecca and the fledgling Muslim community in the 8th century. The invaders fell victim to a mysterious illness; some have speculated that it may have been one of the very first recorded outbreaks of smallpox. Tthe people occupying Mecca were, again, descended from people who had better-than-average resistance to the disease, and thus werent as strongly affected. For this seemingly-miraculous event, the Muslims gave thanks to Allah for striking down their attackers…but its really just basic epidemiology.

  3. Lyla says:

    Which one of the following sexually transmitted diseases is transmitted by a strain of virus? A: Genital warts B:Syphilis C:Chlamydia D:Nongonoccal urenthritis

  4. Emilee says:

    A sexually transmitted disease is passed through sexual contact. There are various sexual transmitted disease. You must be safe and use protection. AID’s is transmitted sexually and it can be fatal. More:

  5. Geneva says:

    Sexually transmitted diseases are diseases that can be transmitted through unprotected sex. Oral sex, anal. intercourse are all included. More:

  6. Peter says:

    Chlamydia has been identified as one of the most common and widespread transmitted diseases in the UK. The disease comes from a bacterium – Chlamydia trachomatis. The symptoms start to appear 7-21 days after infection for both men and women… More:

  7. Karina says:

    The history of sexually transmitted disease is controversial. Historians believe that syphilis was a disease in the 15th century.

  8. Teena says:

    Where Does HPV Come From?. Human papillomavirus (HPV) is the most common sexually transmitted disease, but because the disease can lay dormant for Detail:

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