Support safe alternatives to horseshoe crab blood

Red knots

The overharvesting of horseshoe crab blood by pharmaceutical companies threatens the survival of the red knot, an imperiled migratory shorebird.

A chemical compound found in horseshoe crab blood is used to identify contaminants in vaccines. But with the rise of safe and proven synthetic alternatives, bleeding horseshoe crabs is no longer necessary to protect human health.

Tell the Food and Drug Administration to protect wildlife and support the adoption of synthetic alternatives to horseshoe crab blood.

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