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Intent to vaccinate was similar among pregnant women and parents, at 35% to 40%.
Ongoing outbreaks have raised questions and intense scientific investigations into a host of contributing factors.
There was no evidence that cumulative aluminum exposure in vaccines in the first 2 years of life led to an increased risk of any of the 50 chronic conditions.
Childhood vaccination has ensured that diphtheria and tetanus are "incredibly rare," the authors say.
Italy and France are now reporting local chikungunya cases, and 3 countries have confirmed local dengue infections.
The man's illness was found during monitoring contacts of his father who recently died from a Nipah infection.
The affected district in Guangdong province has reported at least 478 chikungunya cases.
Though levels are still very low, early indicators show regional rises.
Officials also said the overall risk to the public is low.
Recent illnesses from Bangladesh and India have involved the older 2.3.2.1a clade.
