Eczema
SYNOPSIS
The prevalence of asthma, wheeze and eczema among children at 12 months of age might be related to the amount of inactivated vaccine exposure before 6 months of age.
TITLE
Cumulative inactivated vaccine exposure and allergy development among children: a birth cohort from Japan
CITATION
Yamamoto-Hanada et al. Environmental Health and Preventive Medicine (2020) 25:27
https://doi.org/10.1186/s12199-020-00864-7
SUMMARY
Adjuvants used in inactivated vaccines often upregulate type 2 immunity, which is dominant in allergic diseases. The authors hypothesised that cumulative adjuvant exposure in infancy may influence the development of allergies later in life by changing the balance of type 1/type 2 immunity and examined the relationship between immunisation with different vaccine types and later allergic disease development. They found that physician-diagnosed asthma was associated with receiving three or four to five different inactivated vaccines, compared with children who received only one inactivated vaccine. Similar results were found for two questionnaire-based symptoms, i.e. wheeze (three vaccines vs. a single vaccine) and
eczema (four or five vaccines vs. a single vaccine).
TAGS
SYNOPSIS
An allergic response to thimerosal, nickel, mercury and cobalt often manifests as hand eczema.
TITLE
Hand eczema in children. Clinical and epidemiological study of the population referred to a tertiary hospital
CITATION
Ortiz-Salvador JM, Subiabre-Ferrer D, Rabasco AG, Esteve-Martínez A, Zaragoza-Ninet V, de Miquel VA. Anales de Pediatria (Barc.) 2018;88:309-314.
SUMMARY
Hand eczema is a common condition in children. The most common cause is atopic dermatitis, although cases of allergic contact dermatitis manifesting as hand eczema are not uncommon. Using children with hand eczema exclusively, researchers conducted patch-testing. The most frequent allergens detected were thimerosal, nickel, mercury and cobalt.