This is a list of infectious diseases, other than the most common ones, that cause flu-like syndrome (influenza-like illness):
Bacterial
Anthrax
Brucellosis
Cat scratch fever
Legionellosis
Leptospirosis
Listeriosis
Lyme disease
Lymphogranuloma venereum
Mastitis
Salmonellosis
Toxic Shock Syndrome
Syphilis
Tuberculosis
Scrub typhus
Rocky Mountain spotted fever
Viral
Bornholm disease (Coxsackie B virus)
COVID-19
Chickenpox
Cytomegalovirus
Eastern equine encephalitis virus
California encephalitis virus
Enteroviruses
Hendra virus
Hepatitis A, B, C, D, E
Herpes
HIV-1, -2
Newcastle disease
Human parainfluenza viruses
Human rhinovirus
Measles
MERS coronavirus
Human respiratory syncytial virus (RSV)
Rubella
SARS coronavirus
SARS coronavirus 2
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