STD's and Venereal
STD's and Venereal BIOL 1014
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This 1 page Class Notes was uploaded by Crystal Florman on Saturday April 9, 2016. The Class Notes belongs to BIOL 1014 at University of Northern Iowa taught by Dr. Kurt Pontasch in Spring 2016. Since its upload, it has received 21 views. For similar materials see Life: Continuity and Change in Biology at University of Northern Iowa.
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Date Created: 04/09/16
STD/ Venereal About a dozen STD’s- we will only talk about 4 o Gonorrhea- caused by a bacteria Symptoms appear 3-14 days after sex Symptoms are obvious in the male Male- discharge from penis and painful urination Treated with large amounts of penicillin- but resistant strains are common o Syphilis- caused by bacteria Several Stages Primary stage- 3 weeks after sex hard painful sore develops on genitals- disappears after a short time- no more symptoms for 2-4 months Secondary stage- skin rash and infection of organs- may then enter a latent period- which lasts through life Tertiary stage- severe nervous and circulatory system damage and even death Treated with penicillin o Herpes- caused by a virus 1 in 6 sexually active people have genital herpes Herpes is caused by two different viruses Herpes simplex virus I- cold sores on lips HSV II- painful ulcers on genitals o Symptoms usually appear 2-20 days after sex o Painful ulcers may persist for 1-3 weeks then go away Virus can stay in the nerve cell while dormant*** Type 1 can cause blindness Type 2 can cause meningitis o Sunlight, sex, menstruation and stress seem to cause the painful ulcers to reoccur o Although it is not curable the ointment helps relieve the symptoms o New form that prevents outbreaks in 70% of people o AIDS- Acquired immune deficiency syndrome Cause- human T-cell lymph trophic virus group III (HTLV) The virus interferes with T-helper lymphocytes Involved with the immune system’s response to infections and cancers- cause immune system to crash Symptoms- infections such as: pneumonia and meningitis and certain cancers o Karposi’s Sarcoma Incubation period is highly variable- no symptoms- HIV+ Once symptoms appear you have AIDS- often resulting in death Must get in the blood- can be passed from mother to child during birth No known cure or vaccination to date
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