Table 1

Percentages of laboratory isolates of common respiratory pathogens sensitive to trimethoprim alone and trimethoprim-sulphamethoxazole (cotrimoxazole)

OrganismTrimethoprim sensitiveCotrimoxazole sensitive
Haemophilus species90 (n = 32892)92.4 (n = 15558)
Streptococcus pneumoniae 46.4 (n = 7921)88.1 (n = 5385)
Moraxella5.3 (n = 3929)78.6 (n = 2002)
Group A streptococcus73 (n = 8515)80.7 (n = 3276)
  • Data were collected from UK clinical laboratories between 1986 and 1997 (Dr T Winstanley, Department of Microbiology, Royal Hallamshire Hospital, Sheffield, UK—“Microbe Base”, sponsored by GlaxoWellcome UK).