Acetaminophen toxicity (most common cause of acute liver failure in the US)
Viral hepatitis
Hepatitis A
Hepatitis B
Hepatitis C
Hepatitis D
Hepatitis E
HSV
Epstein-Barr virus
Varicella zoster virus
Toxoplasmosis
Acute alcoholic hepatitis
Toxins<unk> toxicity
Crotinarius<unk> 
Gyromitra<unk> <unk> 
Ischemic hepatitis
Hepatitis A
Hepatitis B
Hepatitis C
Hepatitis D
Hepatitis E
HSV
Epstein-Barr virus
Varicella zoster virus<unk> toxicity
Crotinarius<unk> 
Gyromitra<unk> <unk> 
Gyromitra<unk> <unk> 
Carbamate toxicity<unk> toxicity, especially:<unk>  muscaria
Inocybe
Clitocybe
Organophosphate toxicity
Nerve agent
Sarin
VX
Novichok agent
Nicotine toxicity (look alike)
Acetylcholinesterase inhibitor overdose (e.g in myasthenia gravis or post anesthesia reversal)<unk>  muscaria
Inocybe
Clitocybe
Sarin
VX
Novichok agent
Amanita mushrooms
Acetaminophen toxicity 
Crotinarius mushrooms
Viral hepatitis
Gyromitra mushrooms
Hepatitis A
Jimson weed
Hepatitis B