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Table 2 The numbers of various malaria cases in different typesa of county in China, January 2013-June 2014

From: China’s 1-3-7 surveillance and response strategy for malaria elimination: Is case reporting, investigation and foci response happening according to plan?

Type of countya Counties Cases
No (%) Indigenousb No (%) Importedc No (%) Unknown No (%) Total
Type 1 38 (5.2) 52 (10.6) 440 (89.4) 0 492
Type 2 305 (41.7) 3 (0.1) 2027 (99.9) 0 2030
Type 3 349 (47.8) 0 2939 (100) 0 2939
Type 4 39 (5.3) 0 227 (100) 0 227
Total 731 (100) 55 (1) 5633 (99) 0 5688
  1. aType of county:
  2. Type 1: having local transmission and incidence >1/10,000 in the past 3 years
  3. Type 2: having local transmission and incidence <1/10,000 in the past 3 years
  4. Type 3: no local cases reported in the past years but still with risk of transmission
  5. Type 4: malaria free
  6. bAn indigenous case is defined as a case contracted indigenously (i.e. within national boundaries)
  7. cThe origin can be traced to a known malaria endemic area outside the national borders to where the case has travelled within one month