Answer: Bacteria
Notes: Hib (Haemophilus influenzae type b) disease is resurging in the United States due to declining childhood vaccination rates. It is caused by the bacterium Haemophilus influenzae type b infection and mainly affects children under 5 years. It can cause mild infections (ear infections, bronchitis) and severe diseases like meningitis and bloodstream infections. Despite its name, it does not cause influenza (flu). Transmission occurs through respiratory droplets (coughing, sneezing) and close contact. Symptoms vary depending on the infected body part; severe cases may lead to death or long-term complications.
