Study author Richard S. Vetter, a research associate in the department of entomology at the University of California, Agriculture and Natural Resources, wrote that specimens of these powerful arachnids have been mistakenly exported to North America and Europe in banana shipments. However, Vetter noted, in many cases of cargo infestation, the spider in question is a harmless banana spider (genus Cupiennius) that is misidentified as a Phoneutria. The two types of spiders look similar.
'''After a human is bitten by one of these spiders, he or she may experience initial symptoms such as severe burning pain at the site of the bite, sweating and goosebumps, Sewlal said. Within 30 minutes, symptoms become systemic and include high or low blood pressure, fast or a slow heart rate, nausea, abdominal cramping, hypothermia, vertigo, blurred vision, convulsions and excessive sweating associated with shock. People who are bitten by a Brazilian wandering spider should seek medical attention immediately.
In addition to intense pain and possible medical complications, the bite of a Brazilian wandering spider can deliver a long, painful erection to human males, Live Science previously reported. The venom boosts nitric oxide, a chemical that increases blood flow. Several studies have looked at incorporating the venom into drugs for erectile dysfunction.'''
https://www.livescience.com/41591-brazilian-wandering-spiders.html