Bacteria and viruses are the two main causes of meningitis. The bacterium Neisseria meningitidis, also called meningococcus, causes meningococcal meningitis. In children and teens, meningococcus is the most common cause of bacterial meningitis. In adults, it is the second most common cause.
A 14-passenger matatu cost 70 shillings to ride; in a 15-hour day it could make six to seven round trips, taking in 6,000 to 7,000 shillings, about $100. Riding a 51-passenger matatu cost 40 shillings for a vehicle that moved more slowly; it only managed five to six round trips in a day.
Costs associated with this treatment will vary widely based on conditions at the site, but are relatively low compared to other treatments. The average cost for a basic sign ranges from $30 to $150 plus installation costs of approximately $200 per sign [PEDSAFE, 2004].