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Table 2 Category of high frequency keywords

From: A bibliometric analysis of malaria research in China during 2004–2014

  Groups High frequency keywords
1 Malaria 1. malaria (1374)*, 2. falciparum malaria (519), 6. vivax malaria (292), 29. cerebral malaria (94), 40. malariae malaria (58)
2 Plasmodium 4. P. falciparum (353), 8. Plasmodium (243), 18. P. vivax (139), 32. P. yoelii (88)
3 Vectors 16. An. sinensis (148), 28. An. anthropophagus (94)
4 Imported malaria 3. imported malaria (401), 15. floating population (151), 36. migrant workers (72), 43. imported falciparum malaria (56)
5 Epidemiology 5. malaria surveillance (322), 9. malaria epidemic (232), 13. epidemic situation (185), 14. malaria-endemic areas (185), 17. analysis of epidemic situation (140), 20. malaria incidence rates (133), 23. epidemiology (117), 24. reported malaria cases (109), 25. malaria transmission (105), 33. epidemiological traits (86), 37. epidemiological survey (69), 41. epidemic trend (57), 42. Investigation (57)
6 Diagnosis and Treatment 7. antimalarial medicines (278), 10. artemisinin (214), 11. diagnosis and treatment (205), 19. malaria patients (137), 21. malaria vaccines (131) 22. primaquine (127), 27. artemether (94), 31. infectious disease (88), 34. artesunate (84), 35. blood film (77), 38. insecticide resistance (65), 39. plasmodium infection (60)
7 Prevention and Control 12. preventative and curative measures (190), 26. prevention and control strategies (102), 30. prevention and control effects (88), 44. Global Fund (54)
  1. *The serial numbers in front of keywords are the rankings of occurrence frequency, and the numbers in parentheses are the frequency of key words