By focusing your study on these organisms first, you will gain knowledge that is generalisable across most less common pathogens and diseases. Be systematic in your study – see proforma.

• Enterobacteriaceae : E. coli, Klebsiella sp, Proteus sp, Enterobacter sp,  Salmonella sp, Shigella sp.
• Vibrio sp.
• Neisseriaceae : Neisseria gonorrhoeae and N. meningitidis 
• Haemophilus influenzae including type B
• Pseudomonas aeruginosa
• Acinetobacter baumannii
• Campylobacter sp. and Helicobacter sp.
• Bordetella pertussis

See also ORGANISM knowledge proforma.