Massachusetts Department of Public Health officials are investigating four recent botulism cases connected to cosmetic Botox injections administered on the state’s South Shore, according to multiple media sources. The cases have prompted a clinical advisory urging healthcare providers to be alert for botulism symptoms following botulinum toxin treatments.

The advisory, issued Thursday, did not specify the exact locations where the four cases were reported within the South Shore region. State officials characterized the incidents as iatrogenic botulism , a rare but serious adverse reaction resulting from botulinum toxin product administration.

Botulinum toxin, commonly known as Botox, is widely used in cosmetic procedures to reduce wrinkles and fine lines. The toxin can cause systemic bot

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