That Can't Be True with Chelsea Clinton Does Vitamin C Really Boost Your Immune System? with Dr. Zachary Rubin
19 snips
Dec 11, 2025 
Dr. Zachary Rubin, a double board-certified pediatrician and allergist from Chicago, shares critical insights on public health. He passionately discusses the implications of the recent decision to end universal hepatitis B vaccinations for newborns and warns about potential rises in flu cases this winter. Dr. Rubin also emphasizes the worrying increase in allergies, debunks common myths around local honey and vitamin C, and provides practical steps to manage food allergy risks and seasonal allergies. His upcoming book promises to shed more light on these vital topics.
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Hula Hooping Fundraiser
- Zachary Rubin taught himself hula hooping as a child and later used it to fundraise.
- He live-streamed a 2.5-hour hoop session and raised about $5,000 for the American Lung Association.
Why Placebo Trials Aren't Always Possible
- Vaccine safety is extensively monitored and many vaccines had robust randomized trials early on.
- Placebo-controlled trials later become unethical once effective vaccines exist, so continued surveillance replaces them.
Early Viruses Can Prime Asthma Risk
- Early-life viral infections like RSV and rhinovirus can dysregulate immunity and raise asthma risk.
- Preventing severe infant RSV (e.g., with nirsevimab) may lower later asthma or severe disease.
