Table 1.

WHO priority pathogens list for R&D of new antibiotic [4]. The table shows different species of antibiotic-resistant microorganisms categorized by the WHO according to the necessity of novel antibiotics against them.

Priority 1: CRITICAL
i.	Acinetobacter baumannii, carbapenem-resistant
ii.	Pseudomonas aeruginosa, carbapenem-resistant
iii.	Enterobacteriaceae, carbapenem-resistant, ESBL-producing
Priority 2: HIGH
iv.	Enterococcus faecium, vancomycin-resistant
v.	Staphylococcus aureus, methicillin-resistant, vancomycin-intermediate and resistant
vi.	Helicobacter pylori, clarithromycin-resistant
vii.	Campylobacter spp., fluoroquinolone-resistant
viii	Salmonellae, fluoroquinolone-resistant
ix.	Neisseria gonorrhoeae, cephalosporin-resistant, fluoroquinolone-resistant
Priority 3: MEDIUM
x.	Streptococcus pneumoniae, penicillin-non-susceptible
xi.	Haemophilus influenzae, ampicillin-resistant
xii.	Shigella spp., fluoroquinolone-resistant