Klebsiella pneumoniae

Legionella pneumophila

Leishmania

Listeria monocytogenes

Lyme disease

Methicillin-resistant Staphylococcus aureus

Mycobacterium avium

Mycobacterium marinum and ulcerans

Mycobacterium species

Mycoplasma genitalium

Mycoplasma hominis

Mycoplasma pneumoniae