A haemophilus influenzae infection usually begins in the respiratory system. It may spread to other body systems, explains the Merck Manual. It is caused by a group of bacteria, one of which is Haemophilus influenza type B. The U.S. Centers for Disease Control and Prevention estimates that type B is fatal in 3 to 6 percent of cases. A vaccine exists for type B, which has reduced its occurrence in infants and young children. Antibiotics are the standard treatment for Haemophilus influenzae symptoms.
Meninges Symptoms
Haemophilus influenzae may affect the meninges--a membrane that protects the brain and spinal cord. Symptoms of meningeal involvement include stiff and painful neck, uncontrolled crying, back pain, bulging soft spot, nausea, vomiting, headache and irritability. The individual may behave differently than usual or sleep most of the time.
Lung Symptoms
Lung symptoms associated with Haemophilus influenzae include fever and cough. Breathing may become difficult as the infection progresses. The sufferer may cough up thick, discolored sputum.
Sinus Symptoms
Common signs of sinus involvement include fever, cough, nasal discharge, sore throat, headache and swelling in the area of the eyes. The breath may smell foul due to the sinus infection, explains Children's Hospital Boston.
Eye Symptoms
The surface of the eyeball and the inner eyelids can become infected with Haemophilus influenzae. Symptoms of this condition include burning, redness and puffiness of the eyes. The eyes may have discharge and be especially sensitive to bright light.
Ear Symptoms
The middle ear may be affected by Haemophilus influenzae, causing symptoms of ear pain, fluid drainage, irritability, nausea, vomiting, diarrhea, balance problems and ear congestion, according to Children's Hospital Boston. An infant may tug at her ear and cry more than usual. Permanent hearing loss may result from middle ear involvement.
Epiglottis Symptoms
Haemophilus influenzae may infect the epiglottis, the flap that covers the windpipe. Symptoms include fever, severe sore throat and difficulty speaking. As the infection progresses, drooling and an inability to speak may develop.
