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Viral Rash
An exanthem is a widespread rash occurring on the outside of the body and usually occurring in children. An exanthem can be caused by toxins, drugs, or microorganisms, or can result from autoimmune disease. The term exanthem is from the Greek el, ἐξάνθημα, translit=exánthēma, lit=a breaking out, label=none. It can be contrasted with enanthems which occur inside the body, such as on mucous membranes. Infectious exanthem In 1905, the Russian-French physician Léon Cheinisse (1871–1924), proposed a numbered classification of the six most common childhood exanthems. Of these six "classical" infectious childhood exanthems, four are viral. Numbers were provided in 1905. The four viral exanthema have much in common, and are often studied together as a class. They are: Scarlet fever, or "second disease", is associated with the bacterium ''Streptococcus pyogenes''. Fourth disease, also known as "Dukes' disease" is a condition whose existence is not widely accepted t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rubella
Rubella, also known as German measles or three-day measles, is an infection caused by the rubella virus. This disease is often mild, with half of people not realizing that they are infected. A rash may start around two weeks after exposure and last for three days. It usually starts on the face and spreads to the rest of the body. The rash is sometimes itchy and is not as bright as that of measles. Swollen lymph nodes are common and may last a few weeks. A fever, sore throat, and fatigue may also occur. Joint pain is common in adults. Complications may include bleeding problems, testicular swelling, encephalitis, and inflammation of nerves. Infection during early pregnancy may result in a miscarriage or a child born with congenital rubella syndrome (CRS). Symptoms of CRS manifest as problems with the eyes such as cataracts, deafness, as well as affecting the heart and brain. Problems are rare after the 20th week of pregnancy. Rubella is usually spread from one person to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HHV-6
Human herpesvirus 6 (HHV-6) is the common collective name for ''human betaherpesvirus 6A'' (HHV-6A) and ''human betaherpesvirus 6B'' (HHV-6B). These closely related viruses are two of the nine known human herpesviruses, herpesviruses that have humans as their primary host. HHV-6A and HHV-6B are DNA virus#Double-stranded DNA viruses, double-stranded DNA viruses within the ''Betaherpesvirinae'' subfamily and of the genus ''Roseolovirus''. HHV-6A and HHV-6B infect almost all of the human populations that have been tested. HHV-6A has been described as more neurovirulent, and as such is more frequently found in patients with neuroinflammatory diseases such as multiple sclerosis. HHV-6 (and HHV-7) levels in the brain are also elevated in people with Alzheimer's disease. HHV-6B primary infection is the cause of the common childhood illness exanthema subitum (also known as roseola infantum or sixth disease). It is passed on from child to child. It is uncommon for adults to contract this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
