In a recent interview, Robert F. Kennedy Jr. expressed concern over the increasing frequency of measles outbreaks in the U.S., attributing this trend to both declining vaccination rates and waning immunity from the vaccine itself. He noted that the measles vaccine loses effectiveness by approximately 4.5% each year, which leaves older individuals and young children more vulnerable. Kennedy also criticized the lack of maternal immunity provided by current vaccinations compared to natural infection, suggesting that there needs to be a greater focus on this issue by health authorities.
"Measles outbreaks every year... part of that is there are people who don't vaccinate, but also the vaccine itself wanes. The vaccine wanes about 4.5% per year."
"It used to be, when I were a kid, everybody got measles and measles gave you lifetime protection against measles infections."
"Women who get vaccinated, it does not provide that level of maternal immunity that the natural measles infection did, so you're now seeing measles hit very, very young kids and hitting older people within whom the vaccine has waned."
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