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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 ]
The cause is unclear but believed to involve a number of genetic and environmental factors. [2] [4] Risk factors for seborrhoeic dermatitis include poor immune function, Parkinson's disease, and alcoholic pancreatitis. [4] [6] The condition may worsen with stress or during the winter. [4] Malassezia yeast is believed to play a role. [6]
Pityriasis versicolor can look like seborrheic dermatitis, pityriasis rosea, pityriasis alba and vitiligo. [7] Some fungal infections such as coccidioidomycosis, histoplasmosis, and blastomycosis can present with fever, cough, and shortness of breath, thereby resembling COVID-19. [28]
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Some claimed vaccine injuries are not, in fact, caused by vaccines; for example, there is a subculture of advocates who attribute their children's autism to vaccine injury, [7] despite the fact that vaccines do not cause autism. [8] [9] Claims of vaccine injuries appeared in litigation in the United States in the latter part of the 20th century.
The Novavax Covid vaccine may cause fewer side effects than the Pfizer or Moderna mRNA vaccine. Some people have sought it out. ... only 5% of people in the United States had gotten the latest ...
The Pfizer–BioNTech COVID-19 vaccine is used to provide protection against COVID-19, caused by infection with the SARS-CoV-2 virus, by eliciting an immune response to the S antigen. [ 1 ] [ 2 ] [ 31 ] [ 40 ] The vaccine is used to reduce morbidity and mortality from COVID-19.
How COVID‑19 vaccines work. The video shows the process of vaccination, from injection with RNA or viral vector vaccines, to uptake and translation, and on to immune system stimulation and effect. Part of a series on the COVID-19 pandemic Scientifically accurate atomic model of the external structure of SARS-CoV-2. Each "ball" is an atom. COVID-19 (disease) SARS-CoV-2 (virus) Cases Deaths ...