1. An acute (sometimes fatal) form of viral hepatitis caused by a DNA virus that tends to persist in the blood serum and is transmitted by sexual contact or by transfusion or by ingestion of contaminated blood or other bodily fluids
   - hepatitis B

Type of: viral hepatitis

• genus Muscicapa
• genus Muscivora
• genus Musophaga
• genus Mustela
• genus Mustelus
• genus Mutinus
• genus Mutisia
• genus Mya
• genus Myadestes
• genus Mycobacterium
• genus Mycoplasma
• genus Mycteria
• genus Mycteroperca
• genus Mylodon
• genus Myocastor
• genus Myopus
• genus Myosotis
• genus Myotis
• genus Myrciaria
• genus Myrica
• genus Myricaria
• genus Myriophyllum
• genus Myristica
• genus Myrmecia
• genus Myrmecobius