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Multisystem inflammatory syndrome in children (MIS-C), or paediatric inflammatory multisystem syndrome (PIMS / PIMS-TS), or systemic inflammatory syndrome in COVID-19 (SISCoV), is a rare systemic illness involving persistent fever and extreme inflammation following exposure to SARS-CoV-2, the virus responsible for COVID-19. [7]
Autoimmune/inflammatory syndrome induced by adjuvants (ASIA), or Shoenfeld's syndrome, is a hypothesised autoimmune disorder proposed by Israeli immunologist Yehuda Shoenfeld in 2011. [1] According to Shoenfeld, the syndrome is triggered by exposure to adjuvants and includes four conditions: " post-vaccination symptoms ", macrophagic ...
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 reason given is: Needs to ensure latest data is reflected. Marked as inaccurate because the information presented was not originally the basis of an "Epidemiology" section, but discussion of age and possibly gender on the topic are relevant as vaccinations by countries may not have been spread evenly throughout ages and genders.
It is the hallmark symptom of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and common in long COVID and fibromyalgia. [3] [1] PEM is often severe enough to be disabling, and is triggered by ordinary activities that healthy people tolerate. Typically, it begins 12–48 hours after the activity that triggers it, and lasts for days ...
Concerns about thiomersal and vaccines are commonly expressed by anti-vaccine activists. Claims relating to the safety of thiomersal, a mercury-based preservative used in vaccines, are refuted, but still subject to fearmongering, notably claims it could cause neurological disorders such as autism, leading to its removal from most vaccines in the US childhood schedule. [1]
Causes of breakthrough infections include biological factors in the recipient, improper administration or storage of vaccines, mutations in viruses, blocking antibody formation, and other factors. For these reasons, vaccines are rarely 100% effective. A 2021 study found the common flu vaccine provided immunity to the flu in 58% of recipients. [6]
The reason vaccines may be withheld if a child is moderately to severely ill is because certain expected side effects of vaccination (e.g. fever or rash) may be confused with the progression of the illness. [2] It is safe to administer vaccines to well-appearing children who are mildly ill with the common cold. [2]