The hottest Boosters Substack posts right now

First human data for the new XBB.1.5 booster vaccine show good levels of neutralizing antibodies against BA.2.86 and other variants.
Multiple lab studies have characterized the immune response to the BA.2.86 variant.
Wastewater data and hospitalizations suggest a new wave of COVID-19 cases, highlighting the need for booster shots to provide enhanced protection against severe COVID and Long Covid.

FDA commissioner Robert Califf is making inappropriate claims about vaccines and boosters on Twitter.
Califf's claims are not supported by randomized trials, which go against FDA standards.
Califf is spreading misinformation and using low quality evidence, acting more like a Pfizer spokesperson than a respected academic and scholar.

Public health experts suggest waiting 6 months after either a vaccine dose or infection to get a COVID booster.
Fit-tested masks may only protect against exposure for a couple of hours; staying away from infected individuals while prioritizing sleep, good food, exercise, and outdoor time are key.
For vulnerable family members, especially those with autoimmune diseases or elderly, balancing social interactions and precautions remains a challenge despite vaccinations and boosters.

BA.2 is more contagious than BA.1, making it easier to catch.
BA.2 does not cause more severe disease compared to BA.1, so if infected, outcomes may be similar to previous Omicron infections.
BA.2 is not resistant to vaccines for hospitalization and death, offering continued protection from severe outcomes.

Getting vaccinated is the best way to protect yourself and others from COVID-19, including children who can benefit from partial immunity with just one dose.
High-risk individuals should consider getting a booster shot to reduce the risk of serious outcomes from breakthrough infections.
Rapid antigen tests can be useful in determining contagiousness before higher-risk activities or when interacting with vulnerable individuals, providing an added layer of protection.

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Boosters are recommended for certain groups like those over 65 or with chronic conditions, and timing varies depending on the initial vaccine received.
It's important to consider the type of booster based on individual health and risks, with options like sticking with the original vaccine or mixing and matching for added protection.
Side effects from booster shots are similar to initial vaccines, so it's advisable to plan for a day or two for potential reactions like fatigue or arm soreness.