Haemophilus influenzae is a species of bacteria that can cause many kinds of infections. These can range from mild ear infections to severe diseases, like bloodstream infections. Haemophilus influenzae bacteria most often cause pneumonia, a lung infection.
Symptoms include fever, cough, shortness of breath, Chills, Sweating, Chest pain that comes and goes with breathing, Headache, Muscle pain, Excessive tiredness, vomiting, pain in the belly. Antibiotics are used to treat Haemophilus influenzae infections. Most of the cases need to be hospitalized and monitored closely for treatment and management of complications such as meningitis and pneumonia.
The annual incidence of invasive H. influenzae infection was 0.06/100,000 in 2011, 0.08/100,000 in 2012 and 0.09/100,000 in 2013 in all age groups. A slight increase in disease incidence has been observed in adults ≥65 years since 2011.