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Table 1 Entomological collection nights and other activities conducted in each ecological location

From: Characterising residual malaria transmission in forested areas with low coverage of core vector control in central Viet Nam

Location

Month

Entomological collections

Other activities conducted

No. of collection sites

No. of person-nights collection per month

Total no. of person-nights collection

Village

Jul

5 (rotated per night)

5 IHLC/OHLC; 5 cow-bait

18 IHLC; 18 OHLC; 18 cow-bait

Cross-sectional survey, transect walks, household net use

Oct

6 (rotated per night)

6 IHLC/OHLC; 6 cow-bait

Dec

7 (rotated per night)

7 IHLC/OHLC; 7 cow-bait

Farm huts

Jul

1

5 IHLC/OHLC

21 IHLC (16 for extended hours); 21 OHLC (16 for extended hours)

Household net use

Oct

3 (concurrent collection)

9 IHLC/OHLCa (3 per site)

Dec

1

7 IHLC/OHLCa

Forest

Jul

1

5 OHLC

15 OHLC (10 for extended hours)

 

Oct

1

3 OHLCa,b

Dec

1

7 OHLCa

Total

 

18 village sites (in close proximity); 3 unique farm hut sites (one site sampled repeatedly); 3 unique forest sites

 

39 IHLC; 54 OHLC; 18 cow-bait (111 total)

 
  1. aCollection nights include extended hours of 16:00–18:00
  2. bFew collection days due to heavy rain making forest sites inaccessible
  3. Abbreviations: OHLC, outdoor human landing catch; IHLC, indoor human landing catch