UPJOKE
macrophageenzymet-cell receptorpathogenvirusbacteriavaccinationcytokineneutrophilchemotaxiseukaryotephagocytehumoral immunitydendritic cellmast cell

[OC] My kids seem to magically only get sick on school days...and quite a lot of them.

It's like they've got weekend immune systems.

An team of aliens comes to Earth to study the planet.

A group of aliens land on the planet with the intent of studying the planet for scientific purposes. The humans agree to their wishes and allow them to do what they want as long as they don't do any harm or damage. So the aliens create a research site and begin what they came to do.

First the...

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