NelsonCFroesPDyckAMChavarríaJBodaECocaA. Monitoring temperatures in the vaccine cold chain in Bolivia. Vaccine2007; 25:433–7.
2.
MatthiasDMRobertsonJGarrisonMMNewlandSNelsonC. Freezing temperatures in the vaccine cold chain: a systematic literature review. Vaccine2007;25:3980–6.
3.
GalazkaAMilstienJZaffranM. Thermostability of vaccines: global programme for vaccines and immunization (GPV). Geneva: World Health Organization; 1998.
4.
DiminskyDMoavNGoreckiMBarenholzY. Physical, chemical and immunological stability of CHO-derived hepatitis B surface antigen (HBsAg) particles. Vaccine1999;18:3–17.
5.
WangLLiJChenHLiFArmstrongGLNelsonC. Hepatitis B vaccination of newborn infants in rural China: evaluation of a village-based, out-of-cold-chain delivery strategy. Bull World Health Organ2007;85:688–94.
6.
SamantYLanjewarHBlockLParkerDSteinBTomarG. Relationship between vaccine vial monitors and cold chain infrastructure in rural districts of India. Rural and Remote Health2007;7:617(online).
7.
World Health Organization. Study protocol for temperature monitoring in the vaccine cold chain. Geneva: WHO; 2005.
8.
TechathawatSVarinsathienPRasdjarmrearnsookATharmaphornpilasP. Exposure to heat and freezing in the vaccine cold chain in Thailand. Vaccine2007;25:1328–33.
9.
WirkasTToikilikSMillerNMorganCClementsCJ. A vaccine cold chain freezing study in PNG highlights technology needs for hot climate countries. Vaccine2007;25:691–7.
10.
HollingerFBLiangTJ. Hepatitis B virus. In: KnipeDMHowleyPM, editors. Fields virology. 4th ed.Philadelphia: Lippincott-Raven; 2001. p. 2971–3036.
11.
Biological Product Standardization Council of China, editors. Chinese biological product regulations. Chemical Industry Publications2000:135–6.
12.
SPSS Inc.SPSS®: Version 12.0 for Windows. Chicago: SPSS Inc.; 2004.
13.
NelsonCFroesPDyckAMChavarríaJBodaECocaA. Monitoring temperatures in the vaccine cold chain in Bolivia. Vaccine2007;25:433–7.
14.
EdstamJSDulmaaNTsendjavODambasurenBDensmaaB. Exposure of hepatitis B vaccine to freezing temperatures during transport to rural health centers in Mongolia. Prev Med2004;39:384–8.
15.
DavaalkhamDOjimaTWiersmaSLkhagvasurenTNymadawaPUeharaR. Evidence based public health policy and practice: administration of hepatitis B vaccine in winter as a significant predictor of the poor effectiveness of vaccination in rural Mongolia: evidence from a nationwide survey. J. Epidemiol Community Health2007;61:578–84.
16.
HanjeetKLyeMSSinniahMSchnurA. Evaluation of cold chain monitoring in Kelantan, Malaysia. Bull World Health Organ1996;74:391–7.
17.
JainRSahuAKTewariSMalikNSinghSKhareS. Cold chain monitoring of OPV at transit levels in India: correlation of VVM and potency status. Biologicals2003;31:237–44.
18.
KaipilyawarSBLaxminarayanJ. Andhra Pradesh cold chain system marching beyond routine to obtain WHO accreditation. Indian J Public Health2004;48:57–9.
19.
NelsonCMWibisonoHPurwantoHMansyurIMoniagaVWidjayaA. Hepatitis B vaccine freezing in the Indonesian cold chain: evidence and solutions. Bull World Health Organ2004;82:99–105.
20.
HipgraveDBTranTNHuongVMDatDTNgaNTLongHT. Immunogenicity of a locally produced hepatitis B vaccine with the birth dose stored outside the cold chain in rural Vietnam. Am J Trop Med Hyg2006;74:255–60.
21.
HipgraveDBMaynardJEBiggsBA. Improving birth dose coverage of hepatitis B vaccine. Bull World Health Organ2006;84:65–71.
22.
DimayugaRScheifeleDBellA. Effects of freezing on DPT and DPT-IPV vaccines, adsorbed. Can Commun Dis Rep1995;21:101–3.
23.
MatthiasDMRobertsonJGarrisonMMNewlandSNelsonC. Freezing temperatures in the vaccine cold chain: a systematic literature review. Vaccine2007;25:3980–6.
24.
World Health Organization. Temperature monitors for vaccines and the cold chain. Geneva: WHO; 1999.