Health
Training our immune systems: Why we should insist on a high-quality COVID-19 vaccine – The Conversation CA
Our first exposure to a pathogen, either naturally or via vaccination, can affect how our immune system responds in the future to the same or similar pathogens.

Athletes understand that there are two very different approaches that can be taken when training their bodies. For example, lifting heavy weights is a great way to achieve maximum strength. In contrast, low-load high-repetition training is ideal for developing the stamina required for endurance sports.
Scanning electron micrograph of a human T lymphocyte (also called a T cell) from the immune system of a healthy donor.(NIAID), CC BY
Remarkably, our immune system can be trained in a somewhat s…
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