• Blood infection: Fever, chills, vomiting, confusion
• Urinary tract infection: bloody urine, cloudy urine
• Pneumonia: Fever, chills, coughing

• high fever that lasts 4–6 days
• pharyngitis (sore throat)
• conjunctivitis (inflamed eyes, usually without pus formation like pink eye)
• enlargement of the lymph nodes of the neck
• headache, malaise, and weakness
• Incubation period of 5–9 days

• Hemolymphatic phase: Fever, lymphadenopathy
• Neurological phase: Sleep disorders, neurological symptoms, psychiatric symptoms

Suramin by injection is used for T. b. rhodesiense

Symptoms of vaginal candidiasis are vaginal itching or soreness, pain during sexual intercourse

In men, painful or burning sensation when urinating

• Isolation of C. diphtheriae culture
• Histopathologic diagnosis

Toxin demonstration

• In vivo tests (guinea pig inoculation)
• In vitro test: Elek's gel precipitation test, PCR, ELISA, ICA

Clinical criteria

• URT illness with sore throat
• Low-grade fever
• An adherent, dense, grey pseudomembrane covering the posterior aspect of the pharynx

• impetigo, cellulitis, and erysipelas – infections of the skin which can be complicated by necrotizing fasciitis – skin, fascia and muscle
• strep throat AKA strep pharyngitis – pharynx

• Pneumonia: fever, lung consolidation, pleural effusion, tachypnea, tachycardia, or hypotension
• Meningitis: fever, confusion, hypotension, headache, nuchal rigidity, or changing mental status
• Bacteremia: fever, murmur, evidence of an embolic event, hypotension, phlebitis, tachycardia, tachypnea, splenomegaly, or evidence of heart failure
• Skin and soft tissue infection, osteomyelitis, septic arthritis, or discitis: fever, cellulitis, arthritis, arthralgia, localized pain, decubitus ulcer, vascular insufficiency of the lower extremity, back pain, wound infection, or neurologic dysfunction
• Urinary tract infection or pelvic abscess: fever, flank pain, pelvic pain, or abdominal pain

• fever
• severe headache
• muscle aches (myalgia)
• chills and shaking, similar to the symptoms of influenza
• nausea
• vomiting
• loss of appetite
• unintentional weight loss
• abdominal pain
• cough

• Fever – usually lasting 14 days; often mild
• Sore throat – usually severe for 3–5 days, before resolving in the next 7–10 days.
• Swollen glands –  mobile; usually located around the back of the neck (posterior cervical lymph nodes) and sometimes throughout the body.

• Person's age, with highest risk at 10 to 30 years.
• Medical history, such as close contact with other people with infectious mononucleosis, and the presence and time of onset of "mononucleosis-like symptoms" such as fever and sore throat.^{[citation needed]}
• Physical examination, including palpation of any enlarged lymph nodes in the neck, or enlarged spleen.
• The heterophile antibody test is a screening test that gives results within a day, but has significantly less than full sensitivity (70–92%) in the first two weeks after clinical symptoms begin.
• Serological tests take longer time than the heterophile antibody test, but are more accurate.

• Skin lesion consistent with leprosy and with definite sensory loss.
• Positive skin smears.

• Night sweats, fever, cough, chest pain

Neurological infection

• Headache, lethargy, confusion, seizures, sudden onset of neurological deficit

Cardiac conditions

• In recorded cases, it has caused damage to heart valves whether natural or prosthetic

Lymphocutaneous disease

• Nocardial cellulitis is akin to erysipelas but is less acute

Ocular disease

• Very rarely, nocardiae cause keratitis

Disseminated nocardiosis

• Fever, moderate or very high can be seen