Use the A-Z list to browse more than 6,000 health-related topics in our library. Clicking on a term opens the definition and, in most cases, links to more information.
"HPAI" is more commonly referred to as "Highly Pathogenic form of Avian Influenza" in the medical community. Highly Pathogenic form of Avian Influenza
A form of avian flu that can survive in the environment for long periods of time and start a serious epidemic. Found in birds, it can be transmitted to humans, who have no immunity against it. More Information on Highly Pathogenic form of Avian Influenza: Cold & Flu Basics
Also Known As: "Human Parainfluenza Virus, Human Parainfluenza Virus Infection"
A group of four distinct serotypes of single-strand RNA viruses. It is second only to respiratory syncytial virus (RSV) as a common cause of lower respiratory tract disease in young children. Repeat infections are common. More Information on HPIV: Pneumonia & Lung Infection
Also Known As: "HPIV, Human Parainfluenza Virus, Human Parainfluenza Virus Infection"
A group of four distinct serotypes of single-strand RNA viruses. It is second only to respiratory syncytial virus (RSV) as a common cause of lower respiratory tract disease in young children. Repeat infections are common. More Information on HPIV Infection: Pneumonia & Lung Infection
"HPS" is more commonly referred to as "Hantavirus Pulmonary Syndrome" in the medical community. Hantavirus Pulmonary Syndrome
Also Known As: "New York 1 Virus Infection, Hantavirus, Sin Nombre Virus Infection"
A rare but deadly disease transmitted by infected rodents through urine, droppings or saliva. Humans contract the disease by breathing in the aerosolized virus. First recognized in 1993, it has been identified throughout the United States. More Information on Hantavirus Pulmonary Syndrome: Pneumonia & Lung Infection
"HPV" is more commonly referred to as "Human Papilloma Virus (HPV)" in the medical community. Human Papilloma Virus (HPV)
Also Known As: "HPV Infection"
A group of more than 100 viruses that can be transmitted to a partner during sexual intercourse. It can cause genital warts and certain strains are linked to an increased risk of certain cancers (e.g., cervical, oral, anal). More Information on Human Papilloma Virus (HPV): STD & Genital Infections
A group of more than 100 viruses that can be transmitted to a partner during sexual contact. It can cause genital warts and certain strains are linked to an increased risk of cervical cancer. More Information on HPV & Women: STD & Genital Infections
"HPV Infection" is more commonly referred to as "Human Papilloma Virus (HPV)" in the medical community. Human Papilloma Virus (HPV)
Also Known As: "HPV"
A group of more than 100 viruses that can be transmitted to a partner during sexual intercourse. It can cause genital warts and certain strains are linked to an increased risk of certain cancers (e.g., cervical, oral, anal). More Information on Human Papilloma Virus (HPV): STD & Genital Infections
A vaccine first approved in 2006 that protects against several strains of human papillomavirus (HPV). HPV is a common sexually transmitted virus that contributes to most cases of cervical cancer, in addition to genital warts. More Information on HPV Vaccine: ObGyn Cancer
"HRA" is more commonly referred to as "Coronary Risk Profile" in the medical community. Coronary Risk Profile
Also Known As: "Health Risk Appraisal, Risk Profile, Coronary Profile"
A tool for measuring a person's chance of developing coronary artery disease in his or her lifetime. It includes genetic traits, blood pressure, cholesterol, weight, age, activity level and related conditions, such as diabetes. More Information on Coronary Risk Profile: Heart Risk Factors
"hRNA" is more commonly referred to as "RNA" in the medical community. RNA
Also Known As: "Heterogeneous Nuclear RNA, mRNA, Ribonucleic Acid, Transfer RNA, Polynucleotides, Messenger RNA, tRNA"
A substance similar to DNA that is found in every cell of the body. Its functions include protein synthesis and relaying genetic information. There are four main types: heterogeneous (hRNA), messenger (mRNA), transfer (tRNA) and ribosomal (rRNA).
"HRT" is more commonly referred to as "Hormone Replacement Therapy" in the medical community. Hormone Replacement Therapy
Also Known As: "Estrogen Replacement Therapy, Progestin Replacement Therapy, ERT, Progesterone Replacement Therapy, Postmenopausal Estrogen/Progestin Intervention"
Replacement of the female hormones (estrogen and progesterone) lost during menopause. Replacement may be of either or both hormones. Studies have suggested that this may increase breast cancer risk and HRT use has dropped as a result. More Information on Hormone Replacement Therapy: Menopause & HRT
"HSDD" is more commonly referred to as "Hypoactive Sexual Desire Disorder" in the medical community. Hypoactive Sexual Desire Disorder
Also Known As: "Inhibited Sexual Desire, Sexual Desire Disorder"
Persistent or recurring absence of sexual fantasies or desire. May be a result of a procedure to surgically remove the ovaries and the lack of hormones after the surgery. More Information on Hypoactive Sexual Desire Disorder: Sexual Health
"HSUS" is more commonly referred to as "Humane Society of the United States" in the medical community. Humane Society of the United States
The world's largest animal protection organization. The HSUS works to promote the protection of all animals, wild and domestic, through investigation, rehabilitation, public education, political and consumer advocacy, and litigation.
"HSV" is more commonly referred to as "Herpes Simplex Viruses" in the medical community. Herpes Simplex Viruses
Also Known As: "Herpes Simplex Infection"
Infections that affect the mouth, nose, buttocks or genital area. They may lie dormant for long periods before recurring. Strains include type 1 (associated with the lips, mouth and face) and type 2 (sexually transmitted). More Information on Herpes Simplex Viruses: Skin Related Infections
"HSV & Children" is more commonly referred to as "Herpes Simplex Viruses & Children" in the medical community. Herpes Simplex Viruses & Children
Also Known As: "Herpes Simplex Infection & Children"
Infections that affect the mouth, nose, buttocks or genital area. They may lie dormant for long periods before recurring. Some types of herpes may cause fever and inflammation of the gums in children More Information on Herpes Simplex Viruses & Children: Skin Related Infections
"HSV1" is more commonly referred to as "Cold Sores" in the medical community. Cold Sores
Also Known As: "Cold Sore Herpes Virus, Cold Sore Virus, Herpes Labialis"
Tiny blisters on the lip or inside the mouth on the gums and palate. They are caused by the herpes simplex virus type 1 (HSV1), which is transmitted through person-to-person contact. Patients may have flare-ups with colds and fever. More Information on Cold Sores: Oral Infections
"HSV2" is more commonly referred to as "Genital Herpes" in the medical community. Genital Herpes
Also Known As: "Herpes Genitalis"
A common sexually transmitted disease (STD) that involves the eruptions of blisters on the genitals or mouth. There is no cure. Treatment involves reducing the number of outbreaks. The disease can be spread even when no outbreak is current. More Information on Genital Herpes: STD & Genital Infections
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