Skip to main content

Advertisement

Table 2 Stratification for seasonal mass drug administration

From: Mass drug administration for the control and elimination of Plasmodium vivax malaria: an ecological study from Jiangsu province, China

Time period Incidence in year prior Target population Daily drug regimen (adult dose)
MDA, Jiangsu Province, 1973-1976  
1973-1976 n/a All rural counties pyrimethamine 50 mg × 2d + primaquine 30 mg × 4d
1977-1983 ≥5% Entire county pyrimethamine 12.5 mg + primaquine 22.5 mg × 8d
  <5% Index cases from past year with family and neighbors
Focal MDA, Select counties, 2000-2009
2000-2006 ≥1% Entire village chloroquine 400 mg × 3d + primaquine 22.5 mg × 8d
  <1% Index cases from past 2 y with family, IFAT positive individuals from past 2 y
2007 ≥1% Entire village chloroquine 400 mg × 3d + primaquine 22.5 mg × 8d
  <1% but >1 case Index cases from past 2 y with family and neighbors
  1 case Index cases and IFAT positive individuals from past 2 y primaquine 22.5 mg × 8d
2008 ≥3% Entire village chloroquine 400 mg × 3d + primaquine 22.5 mg × 8d
  1-3% Index cases from past year with family and neighbours
  <1% Index cases from past year with family, IFAT positive individuals from past year primaquine 22.5 mg × 8d
2009 2-3 cases Index cases from past year with family and neighbours chloroquine 400 mg × 3d + primaquine 22.5 mg × 8d
  1 case Index case from past year primaquine 22.5 mg × 8d
  1. IFAT indirect fluorescent antibody test, IFAT surveys as a measure of past exposure were performed in select townships. In Sihong, number of IFAT positive individuals treated was 24 in 2006, 13 in 2007, and six in 2008. Village refers to a natural village, the administrative level below an administrative village.
  2. Drug regimens are recorded as adult dosages though age adjusted doses were given to children.