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Roseola, also known as sixth disease, is an infectious disease caused by certain types of human herpes viruses. [2] Most infections occur before the age of three. [1] Symptoms vary from absent to the classic presentation of a fever of rapid onset followed by a rash.
Roseola infantum (exanthem subitum) "sixth disease" HHV-6 and HHV-7: Rapid onset of erythematous, blanching macules and papules surrounded by white halos on the trunk after 3-5 days of high fever. The rash spreads to the neck and body extremities and lasts 1-2 days.
The acquisition of HHV-6 in infancy is often symptomatic, resulting in childhood fever, diarrhea, and exanthem subitum rash (commonly known as roseola). Although rare, this initial infection can also cause febrile seizures, encephalitis or intractable seizures.
The "slapped cheek" appearance of the rash can be suggestive of fifth disease, however, the rash can be mistaken with other skin related disease or infections. Many other viral rashes, like measles, rubella, roseola, and scarlet fever, can look similar to erythema infectiosum.
Roseola infantum; References This page was last edited on 9 June 2024, at 04:11 (UTC). Text is available under the Creative Commons Attribution ...
Although fever is a common symptom of Covid-19, some people infected with the virus report chills without a fever. So, if you have chills along with other common Covid symptoms, such as a sore ...
Pityriasis rosea is a type of skin rash. [2] Classically, it begins with a single red and slightly scaly area known as a "herald patch". [2] This is then followed, days to weeks later, by an eruption of many smaller scaly spots; pinkish with a red edge in people with light skin and greyish in darker skin. [4]
After the latency period (but before clinical infection) the infected person can transmit the disease without signs of any symptoms. Such infection is called subclinical infection. Incubation period (also known as the latent period or latency period ) is the time elapsed between exposure to a pathogenic organism, a chemical, or radiation , and ...