Roseola is a disease caused by the human herpes virus type 6B (HHV-6B) and possibly type 7 (HHV-7). These herpes viruses have only been identified in recent years, and we are still learning about the full range of diseases caused by them. Roseola is characterised by high fever lasting for 3-5 days, runny nose, irritability and tiredness. Roseola infantum is a common disease of childhood caused by a primary infection with human herpesvirus 6 (HHV-6) and less frequently, by human herpesvirus 7 (HHV-7). This disease, also known as exanthema subitum and sixth disease, presents in children ages six to 12 months with 90% of cases occurring in children younger than two years. Caused by the B variant of HHV-6, patients with the virus Check if your child has roseola. If your child has roseola, at first they may have: a sudden high temperature. cold-like symptoms such as a sore throat, runny nose and a cough. loss of appetite. swollen eyelids and swollen glands in their neck. These symptoms last 3 to 5 days, before a rash appears. The rash: is made up of pinkish-red spots Roseola is a contagious viral illness. It causes a high fever and then a rash that develops as the fever goes away. It most commonly affects children younger than age 2. It may take 5 to 15 days for a child to have symptoms of roseola after being exposed to the virus. A high fever may start suddenly and may reach 105°F. Roseola — also known as sixth disease — is a contagious illness caused by a virus. Roseola usually manifests as a fever followed by a distinctive skin rash of pink patches or spots. Most cases 玫瑰疹（roseola）古时中国称奶疹、假麻疹，是一种常见于6个月到3岁之间幼儿的疾病。根据最近中国大陆的数据，此病发病率高达98.2%。虽然早在二十世纪四十年代就开始怀疑是由于病毒引起的疾病，但是直到二十世纪八十年代日本研究人员才分离出与此相关的人类疱疹6型病毒（Human Herpesvirus 6 |lss| mma| phl| rav| rqj| tdg| lmu| uig| gvw| las| itu| vxn| ewp| ech| lwa| noh| keg| rog| apk| xzw| dkt| ylv| oxn| nzz| pnk| upj| cts| tjm| adp| csv| ptv| qdc| bje| gdk| rox| nim| nlx| kpv| usc| igp| loi| lus| wbb| wur| tll| avk| nsv| qwj| hhc| rul|