<prompt> A person who works in brass industry presents to emergency with chills and rigors. Which of the following poisoning is most likely?Red phosphorusMercuryArsenicZinc  <response>: Symptoms of metal fume fever occur up to 24 hours after exposure to zinc oxide fumes. It presents as an influenza-like illness with a headache, fever, sweating, chest tightness and discomfo, and joint pains. zinc oxide fumes is associated with a dose-dependent marked inflammatory response in the lung. The pathogenesis is not known but is thought to result from endogenous pyrogen release due to cell lysis. Ref - Krishan Vij textbook of forensic medicine and toxicology 5e pg - 567 