Comment on

• Effect of intensive handwashing promotion on childhood diarrhea in high-risk communities in Pakistan: a randomized controlled trial.

  Luby SP, Agboatwalla M, Painter J, Altaf A, Billhimer WL, Hoekstra RM. Luby SP, et al. JAMA. 2004 Jun 2;291(21):2547-54. doi: 10.1001/jama.291.21.2547. JAMA. 2004. PMID: 15173145 Clinical Trial.
• Monthly antibiotic chemoprophylaxis and incidence of sexually transmitted infections and HIV-1 infection in Kenyan sex workers: a randomized controlled trial.

  Kaul R, Kimani J, Nagelkerke NJ, Fonck K, Ngugi EN, Keli F, MacDonald KS, Maclean IW, Bwayo JJ, Temmerman M, Ronald AR, Moses S; Kibera HIV Study Group. Kaul R, et al. JAMA. 2004 Jun 2;291(21):2555-62. doi: 10.1001/jama.291.21.2555. JAMA. 2004. PMID: 15173146 Clinical Trial.
• Impact of the Mexican program for education, health, and nutrition (Progresa) on rates of growth and anemia in infants and young children: a randomized effectiveness study.

  Rivera JA, Sotres-Alvarez D, Habicht JP, Shamah T, Villalpando S. Rivera JA, et al. JAMA. 2004 Jun 2;291(21):2563-70. doi: 10.1001/jama.291.21.2563. JAMA. 2004. PMID: 15173147 Clinical Trial.
• Sustainability of reductions in malaria transmission and infant mortality in western Kenya with use of insecticide-treated bednets: 4 to 6 years of follow-up.

  Lindblade KA, Eisele TP, Gimnig JE, Alaii JA, Odhiambo F, ter Kuile FO, Hawley WA, Wannemuehler KA, Phillips-Howard PA, Rosen DH, Nahlen BL, Terlouw DJ, Adazu K, Vulule JM, Slutsker L. Lindblade KA, et al. JAMA. 2004 Jun 2;291(21):2571-80. doi: 10.1001/jama.291.21.2571. JAMA. 2004. PMID: 15173148 Clinical Trial.