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Table 1 Top ten frequent drug classes encountered in the retrieved documents (AMR in the environment) during the study period from 2000 to 2019

From: Bibliometric analysis of global research output on antimicrobial resistance in the environment (2000–2019)

Rank Drug class Occurrences (%)
N = 2611
1 Penicillin and Cephalosporines (B-Lactams) 1152 (44.1)
2 Aminoglycosides 1052 (40.3)
3 Tetracycline 958 (36.7)
4 Quinolones/ Fluoroquinolones 852 (32.6)
5 Folate antagonists 831 (31.8)
6 Macrolids 462 (17.7)
7 Chloramphenicol 409 (15.7)
8 Carbapenems (B-Lactams) 227 (8.7)
9 Glycopeptides (vancomycin,) 222 (8.5)
10 Polypeptide (Colistin/Polymyxin) 42 (1.6)
  1. AMR antimicrobial resistance