| A | B |
|---|
| sexually transmitted infection (STI) | any pathogen that spreads from one person to another during sexual contact |
| trichomoniasis | caused by a protozoan that infects the urinary tract or vagina |
| urethritis | inflammation of the lining of the urethra |
| vaginitis | vaginal infection or irritation |
| human papilloma virus | a very common viral sexually transmitted infection |
| chlamydia | the most common STI caused by bacteria in the US |
| pelvic inflammatory disease | serious infection of the reproductive ograns caused by chlamydia |
| gonorrhea | a bacterial STI that infects the urinary tract of males and females and the reproductive organs of females |
| genital herpes | STI caused by a virus; herpes simplex virus |
| syphilis | serious bacterial STI that progresses through three stages |
| chancre | painless sore that appears on the site of exposure to syphilis |
| HIV | human immunodeficiency virus; the msot serious incurable STI |
| AIDS | casued by HIV infection; acquired immunodeficiency syndrome; fatal disease of the immune system |
| asymptomatic stage | period when a person shows no outward signs of disease; lack of symptoms |
| opportunistic infection | attacks a person with a weakened immune system |
| universal precautions | i.e. wearing gloves, wearing gowns, wearing masks, disposing of syringes and needles properly |
| HIV-positive | a person who is diagnosed as being infected with HIV |
| viral load | the number of virus particles circulating in the body |
