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Table 3 Implementation of the 1-3-7 strategy for malaria elimination

From: Implementation and success factors from Thailand’s 1-3-7 surveillance strategy for malaria elimination

1-3-7 strategy Activities
Case notification (within 1 day) Confirmed malaria cases
Area classification Active foci (A1) Residual non-active foci (A2) Receptive foci (B1) Non-receptive foci (B2)
Case investigation and classification (within 3 days) Indigenous/Imported Indigenous/Imported Imported Indigenous Imported
Foci investigation and response (7 days) Surveillance RACD 50 people/10 HHs 1–2 km
PACD (2 rounds/year)
Foci investigation (persistent indigenous cases)
RACD 50 people/10 HHs 1–2 km
PACD (1 round/year)
Foci investigation (if an indigenous index case is reported)
RACD 50 people/10 HHs 1–2 km
Re-investigation and confirmation
RACD in whole village and cluster screening
Re-investigation and confirmation
Foci investigation
Confirm new focus
Continue surveillance
Diagnosis Communitya (RDT/Microscopy)
Public health facilityb (Microscopy)
Community (RDT/Microscopy)
Public health facility (Microscopy)
Public health facility (Microscopy) Community (RDT/Microscopy)
Public health facility (Microscopy)
Hospitals (Microscopy)
Treatment and follow-up Supervised treatment
Case follow-upc
Supervised treatment
Case follow-up
Supervised treatment
Case follow-up
Supervised treatment
Case follow-up
Supervised treatment
Case follow-up
Vector control Vector survey
ITNs or IRS (90% coverage)
LLIN (1 per 2 persons)
Vector survey
ITNs or IRS (90% coverage)
LLIN (1 per 2 persons)
Vector survey Vector survey
ITNs or IRS (90% coverage)
LLIN (1 per 2 persons)
 
  1. HH household, IRS indoor residual spraying, ITN insecticide-treated net, LLIN long-lasting insecticidal net (includes ITNs, retreated bed nets, and hammocks), PACD proactive case detection, RACD reactive case detection, RDT rapid diagnosis test
  2. aMalaria posts and malaria clinics
  3. bHealth promoting hospitals and district, provincial, and regional public hospitals
  4. cFollow-up and re-testing for P. falciparum and P. vivax cases according to national guidelines