Taking into account the burden of Low findings from this systematic review found infection is higher in developing countries infection are Streptococcus pneumoniae, E frequency of lower respiratory tract infec years and older age group (age greater negative rods such as Escherichia coli a resistance to most antibiotics such as documented by Streptococcus pneumon oxacillin. This type of review will be us information that can lead to efficient strat settings in Africa are not able to diagno knowledge of major respiratory bacterial first-line treatment.