Influenza virus – symptoms, treatment and flu vaccine

Influenza Definition Influenza is a common and potentially serious viral INFECTION, commonly called the flu, that causes upper respiratory symptoms. Influenza viruses rapidly adapt and mutate, which gives them the perpetual ability to cause illness. There are three types of human influenza VIRUS-influenza A, influenza B, and influenza C. Influenza A viruses are primarily responsible for annual outbreaks […]

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Measles virus – symptoms, course and treatment

Measles Virus Definition An illness resulting from INFECTION with the measles VIRUS. Once among the most common childhood diseases worldwide, measles (also called rubeola) now primarily exists in developing nations where it remains a leading cause of childhood blindness and death. Routine measles IMMUNIZATION, the standard of care since becoming available in the early 1960s, has […]

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Mononucleosis, infectious – symptoms and treatment

Infectious Mononucleosis Definition An illness that results from INFECTION with the EPSTEIN-BARR VIRUS. Infectious mononucleosis is most prevalent among adolescents and young adults though may occur at any age. The infection spreads through contact with saliva; among young people and within families, sharing drinks and food are common means of contracting the illness. The Epstein-Barr VIRUS […]

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Mumps virus – symptoms and treatment

Mumps Virus in Adults and Children – Definition Mumps – An illness resulting from the mumps VIRUS, which primarily infects the SALIVARY GLANDS and may also involve the PANCREAS, TESTICLES(men), OVARIES (women), and sometimes the KIDNEYS. The mumps virus may also invade the CENTRAL NERVOUS SYSTEM, causing NEURITIS and ENCEPHALITIS. Since the advent of the mumps VACCINE in the early 1980s, […]

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Pertussis – what is, symptoms and treatment

Pertussis Definition An illness resulting from INFECTION with the VIRUS Bordetella pertussis. Pertussis is among the childhood diseases for which routine IMMUNIZATION is the standard of care in the United States. The hallmark of the illness is a rapid, violent cough that causes the person to make a “whooping” sound when trying to breathe through the coughing, […]

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Colds symptoms and treatment

Colds Definition Colds – common illnesses resulting from INFECTION with one of more than 200 variations of rhinovirus, a family of highly contagious viruses that infiltrate the nasal mucosa (mucous membranes that line the inside of the nose and the sinuses). Because so many variations of rhinovirus can cause colds, most people get several colds a […]

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Prodrome – Definition

Prodrome Definition Prodrome – the stage of illness immediately before the emergence of full symptoms. Prodrome is particularly prominent in herpesvirus INFECTION, which features tingling and irritation at the sites where herpes blisters are about to erupt. Prodrome occurs with many viral infections, such as MEASLES and CHICKENPOX. Often these infections are most contagious during the prodrome. […]

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Cytomegalovirus / CMV virus – Symptoms, causes and treatment

What is Cytomegalovirus – CMV virus and causes Cytomegalovirus / CMV virus – a member of the herpesvirus family, also called human herpesvirus-5 (HHV-5). Like other herpesviruses, CMV is ubiquitous throughout the world-85 percent of Americans have CMV INFECTION by age 40. However, CMV infection primarily causes illness only in people who are IMMUNOCOMPROMISED, such as people who have HIV/AIDSor […]

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Rabies Virus – Definition, Symptoms and Treatment

Rabies Virus Definition A potentially fatal illness resulting from INFECTION with the rabies VIRUS, which belongs to the Lyssavirus viral family. Rabies is very rare in people though a common infection in wild animals who can transmit the infection to unvaccinated pets such as dogs and cats or to people through bites. Raccoons, skunks, coyotes, […]

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Encephalitis (virus) – symptoms and treatment

Encephalitis Definition INFLAMMATION and INFECTION of the BRAIN. Encephalitis usually results from infection with a VIRUS and is potentially life threatening. Infection can enter the brain via pathogens that are small enough to pass across the BLOOD-BRAIN BARRIER or that are able to follow neural pathways (the routes of nerves) into the brain. The most […]

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