1. Acetylcholinesterase activity higher in mice experimentally infected with Toxoplasma gondii than controls (Tonin et al. 2013); Cholinesterase activity associated with COVID‐19 severity (Nakajima et al. 2021) and whether patients developed septic shock from bacterial infections (Bahloul et al. 2017). The gene discussed is ACHE; the disease is COVID-19.