Std's diseases data sheet

1. SEXUALLY TRANSMITTED DISEASES STD’s
EIGHTH GRADE.
SECOND TERM.
Guided stage.
TOPIC I
Complete the following data sheet about sexual transmitted diseases.
Description Type of infectious
and causes
Treatment
Gonorrhea
Syphilis
Chlamydia
Acquired immune deficiency
syndrome, or AIDS
Genital Herpes
Human papillomavirus (HPV)
Human papillomavirus (HPV)
Crab lice
Sexually Transmitted Diseases STD
Sexually transmitted diseases (STDs) are transmitted primarily through sexual contact. Caused by viruses,
bacteria, protists, or arthropods that infect the sexual organs and reproductive tract, STDs are a serious
and growing health problem worldwide.
BACTERIAL INFECTIONS:
Gonorrhea is a common STD often called “the clap”. The bacteria can penetrate membranes lining the
urethra, anus, cervix, uterus, uterine tubes, and throat. Male may experience painful urination and
discharge of pus from the penis; female symptoms are often mild and include a vaginal discharge or

2. painful urination. Although gonorrhea can be treated with antibiotics, because many infected individuals
experience few or no symptoms, they go untreated and readily spread the disease. Gonorrhea can lead
infertility by blocking the uterine tubes with scar tissue. The bacterium attacks the eyes of newborns of
infected mothers and was once a major cause of blindness. Today, most newborns are immediately
given antibiotic eyedrops to prevent this.
Syphilis bacteria penetrate the mucous membranes of the genitals, lips, anus, or breast. Because they
don´t survive prolonged exposure to air, they are spread almost entirely by intimate contact. Syphilis
begins with a sore at the site of infection and can be cured with antibiotics. If untreated, syphilis bacteria
spread through the body, damaging many organs including the skin, kidneys, heart, and brain, in some
cases with fetal results. Syphilis can be transmitted to the fetus during pregnancy; and the skin, teeth,
bones, liver, and central nervous system of the infant may be damaged.
Chlamydia causes inflammation of the urethra in males and of the urethra and cervix on females. In
many cases, there are no obvious symptoms, so the infection hoes untreated and spread. The chlamydia
bacterium can infect and block the uterine tubes. Resulting in sterility. Chlamydial infection can cause eye
inflammation in infants born to infected mothers and is a major cause of blindness in developing
countries.
VIRAL INFECTIONS.
Acquired immune deficiency syndrome, or AIDS, is caused by the human immunodeficiency virus (HIV).
It is spread primarily by sexual activity, contaminated blood and needless, and from mother to newborn.
HIV attacks the immune system, leaving the victim vulnerable to a variety of infections. There is no a
cure, but drug combinations can prolong life considerably.
Genital Herpes cause painful blisters on the genitals and surrounding skin and is transmitted primarily
when blisters are present. Herpes remains in the body, emerging unpredictably, possibly in response to
stress. Antiviral drugs can reduce the severity of outbreaks. A pregnant woman with an active case of
genital herpes can transmit the virus to the developing fetus, in rare cases causing mental or physical
disability or stillbirth. Herpes can also be transmitted during the childbirth.
Human papillomavirus (HPV) infects an estimated 50% of sexually active individuals at some time in
their lives. Most show no symptoms and recover from the infection without knowing they had it. The
virus may cause warts on the labia, vagina, cervix, or anus in females and on the penis, scrotum, groin,
or thighs in males. The warts usually disappear, or they can be removed. It can causes cervical cancer.
PROTIST ANDARTHROPOD INFECTIONS.
Trichomoniasis is caused by a protist that colonizes the mucous membranes lining the urinary tract and
genitals of both males and females. Symptoms include a discharge caused by inflammation in response to
the parasite. The protist is spread by intercourse but can also be acquired from contaminated clothing
and toilet articles. Lengthy untreated infections can result in sterility.

3. Crab lice, also called pubic lice, are tiny arachnids that live and lay their eggs in pubis hair. Their
mouthparts are adapter for penetrating skin and sucking blood and body fluids, a process that causes
severe itching. “Crabs” are not only irritating; they can also spread infectious diseases. They can be
controlled through careful hygiene and chemical treatment.
Audesirk, Teresa. Biology: life on earth with physiology. 2008. 8Th ed.