Scientists engineer human antibodies that could neutralize black widow toxin

There are various types of widow spiders, including black, red, and brown varieties in North and South America, the Australian redback spider, and several button spider species that inhabit South Africa. In Europe, Latrodectus tredecimguttatus—the European black widow—inhabits the Mediterranean region, but recently and due to the changing climate, the widows have been expanding their habitat.

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