I understand your concern,There are several pathogens (types of germs) that can cause bacterial meningitis. Some of the leading causes of bacterial meningitis are Haemophilus influenzae (most often caused by type b, Hib), Streptococcus pneumoniae, group B Streptococcus, Listeria monocytogenes, and Neisseria meningitidis.Infants are at higher risk for bacterial meningitis than people in other age groups. However, people of any age are at risk.which pathogens more commonly affect which age groups can be made out by an experienced doctor.If meningitis is suspected, samples of blood or cerebrospinal fluid (near the spinal cord) are collected and sent to the laboratory for testing. It is important to know the specific cause of meningitis because that helps doctors understand how to treat the disease, and possibly how bad it will get. In the case of bacterial meningitis, antibiotics can help prevent severe illness and reduce the spread of infection from person to person (depending on which bacteria are causing the infection). If bacteria are present, they can often be grown (cultured). Growing the bacteria in the laboratory is important for confirming the presence of bacteria, identifying the specific type of bacteria that is causing the infection, and deciding which antibiotic will work best. Other tests can sometimes find and identify the bacteria if the cultures do not.Bacterial meningitis can be treated effectively with antibiotics. It is important that treatment be started as soon as possible. Appropriate antibiotic treatment of the most common types of bacterial meningitis should reduce the risk of dying from meningitis to below 15%, although the risk remains higher among young infants and the elderly.As your child is under treatment, your doctor would have done all these tests and antibiotics are being given.To give any further opinion, the reports have to be seen. YOu can discuss all details with your doctor and if any special treatment is needed he should tell you. Take care regards