Md. Masud Hassan Senior Lecturer Dept. Of Biology Sub:Biology Second Paper

Chapter-9

 tell the definition of sexually transmitted diseases  tell the names of the sexually transmitted diseases  describe the treatment of these diseases. Learning output After completing this lesson students should be able to…

The diseases which transmitted by means of human sexual behaviour are called STD.

Treponema pallidum.(Bacteria)

Symptoms of syphilis 1. First stage: Just one ulcer 100 days after infection, appear red dome, called chancre.

First stage syphilis

Second stage syphilis Round and red spots appear in chest, arm, leg, soles, palm, meningitis, headache, fatigue and mild fever, anemia and jaundice.

Final stage syphilis Brain, heart, blood vessels, retina, nerves, eye damage.

Prevention :  Safe sex  Regular STD check-up.  Awareness Treament:  Penicillin is very effective for all stages of syphilis.

Neisseria gonorrhoeae (Bacteria )

Infection Mucus membrane of body, reproductive system- cervix, fallopian tubes, uterus, urethra, mouth, throats, eye and anus are infected,

Symptoms In men:  Greenish,yellow, whitish discharge from the penis.  Burning during urinating  Burning in the throat  Swollen testicle  Swollen glands in the throats

In women:  Greenish, yellow, whitish discharge from the vagina  Pelvic pain.  Burning during urinating.  Conjunctivitis  Swollen glands in throat Symptoms

Prevention:  Use of condoms  Awareness should be created. Treatment :  400mg cefixime single oral dose.  125mg of ceftriaxone a single IM dose.

Human Immuno-deficiency

 Injection needle  Sexual contaction  Blood tranfussion  Milk  Blade in saloon  Dental surgery Transmission

Symptoms  Fever continue for long time  Decreases body weight.  Enlarged of lymph nodes  Pneumonia  Brain infection  Cancer of soft tissue  Causes of death.

Prevention  Abstain from sex  Have sex with single partner.  Use of condom  Do not share needle  Careful in blood transfusion  Do not shave in saloon with used blade.  Awareness should be taken Treatment:  Nucleoside reverse transcriptase inhibitors  Protease inhibitor  Highly active antiretroviral therapy (HAART)

Make a list of causes of Syphilis Make a list of causes of AIDS. Group-AGroup-B

 Whitish pus cells are discharged through the urine of Faruk. He feels burning sensation when he urinates. Doctor said, Faruk is suffering from a special disease. Doctor added that “ this type of another disease created a panic in the world.” a.What is STD? b.What is meant by HIV? c.Explain the preventive measures of disease of Faruk. d.Analyze the last statement of doctor.

 Write a short note on AIDS HOME WORK