Abstract: | Meningitis developed in 3 of 14 children with occult pneumococcaemia; in 2 of them it developed while they were being treated with low doses of intravenous penicillin, in the third child it developed at a time when he was not being treated. All children with occult pneumococcaemia should be treated with intravenous penicillin as are those with pneumococcal meningitis. |