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There's a reason soldiers go through basic training before heading into combat: Without careful instruction, green recruits armed with powerful weapons could be as dangerous to one another as to the enemy. The immune system works much the same way. Immune cells, which protect the body from infections, need to be "educated" to recognize bad guys — and to hold their fire around civilians. Advertisement: In some covid patients, this education may be cut short. Scientists say unprepared immune cells appear to be responding to the coronavirus with a devastating release of chemicals, inflicting d...

The immune system works much the same way. Immune cells, which protect the body from infections, need to be “educated” to recognize bad guys — and to hold their fire around civilians. (File photo: Fusion Medical Animation/Unsplash) There’s a reason soldiers go through basic training before heading into combat: Without careful instruction, green recruits armed with powerful weapons could be as dangerous to one another as to the enemy. The immune system works much the same way. Immune cells, which protect the body from infections, need to be “educated” to recognize bad guys — and ...

The more experts look at Covid, the more they seem to come up with new questions rather than answers.

There's a reason soldiers go through basic training before heading into combat: Without careful instruction, green recruits armed with powerful weapons could be as dangerous to one another as to the enemy.

Scientists say unprepared immune cells appear to be responding to the coronavirus with a devastating release of chemicals, inflicting damage that may endure long after the threat has been eliminated.