Final answer:
Haemophilus influenzae type b (Hib) is the most common bacterial meningitis in toddlers.
Step-by-step explanation:
Bacterial meningitis is an infection that causes inflammation of the meninges, the protective membranes surrounding the brain and spinal cord. This condition can be serious and requires prompt medical attention. Bacterial meningitis can occur in individuals of all ages, including toddlers. The common bacteria causing meningitis in toddlers include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae type b.
The most common bacterial meningitis in toddlers is caused by Haemophilus influenzae type b (Hib). Before the use of the Hib vaccine, H. influenzae was the primary cause of meningitis in children from 2 months to 5 years of age. However, with the effectiveness of the vaccine, the incidence of Hib meningitis has significantly decreased.