A: I don’t think it was a reaction to the pneumonia vaccine after two weeks. The polysaccharides that comprise the vaccine are long gone at this point. Apart from live vaccines, delayed ...

Now we are discovering reactions that proceed at a completely different speed, are reversible, and potentially have signaling or regulatory functions," says Ph.D. Jakob Hansen, another researcher ...

Most patients who had a delayed immune-mediated adverse event following COVID-19 vaccination tolerated revaccination, according to a study published in The Journal of Allergy and Clinical ...

The polysaccharides that comprise the vaccine are long gone at this point. Apart from live vaccines, delayed reactions to vaccines (more than 48 hours) are extremely rare.

Cysteine amides react with MG and LGSH to generate Lac-Cys or lactate in GLO1 and 2 like reactions. Credit: Nature Chemical Biology (2025). DOI: 10.1038/s41589-025-01909-0 ...

Apart from live vaccines, delayed reactions to vaccines (more than 48 hours) are extremely rare. Also: Learn how to adjust your body to a new sleeping schedule ...