Prof Hans (H. L.) Zaaijer MD PhD


Medical doctor, medical microbiologist


Confirmatory testing of blood-borne viral infections
1995 - University of Amsterdam

Research interests

Detection and epidemiology of blood-borne infections. Decision making and ethics concerning preventive measures. Occult HBV infection


Serological and nucleic acid-based detection of infectious agents


2008-present Head of Dept Blood-borne Infections, Sanquin Research, Amsterdam
2003-present Medical microbiologist at Clinical Virology, AMC, Amsterdam
1999-2003 Medical microbiologist at VU Medical Centre, Amsterdam
1996-1999 VUmc: training as medical microbiologist (prof.dr. Vandenbroucke-Grauls)
1982-1995 Central Laboratory of the Dutch Blood Transfusion Service:
a) 1982-1986: MD at IT-department.
b) 1986-1991: Head of ‘Information Centre' .
c) 1992-1995: Laboratory physician at CLB-Virology
1974-1982 Medicine, University of Amsterdam

Other publications

Selected Sanquin publications

Baaten GG, Sonder GJ, Zaaijer HL, van Gool T, Kint JA, van den Hoek A. Travel-related dengue virus infection, The Netherlands, 2006-2007. Emerg Infect Dis. 2011 May;17(5):821-8.

Hogema BM, Slot E, Molier M, Schneeberger PM, Hermans MH, van Hannen EJ, van der Hoek W, Cuijpers HT, Zaaijer HL. Coxiella burnetii infection among blood donors during the 2009 Q-fever outbreak in the Netherlands. Transfusion 2011. Epub ahead of print July 14.

Daha TJ, Bilkert-Mooiman MAJ, Ballemans C, Frijstein G, Keeman JN, de Man RA, van Steenbergen JE, Weers-Pothoff G, Zaaijer HL. Management of hepatitis B virus infected health care workers in the Netherlands, 2000-2008. Eur J Clin Microbiol Infect Dis 2009; 28(9):1041-4.

Zaaijer HL, van Hemert FJ, Koppelman MH, Lukashov VV. Independent evolution of overlapping polymerase and surface protein genes of hepatitis B virus. J Gen Virol 2007; 88:2137-43.

Zaaijer HL, ter Borg F, Cuypers HT, Hermus MC, Lelie PN. Comparison of methods for detection of hepatitis B virus DNA. J Clin Microbiol 1994; 32(9):2088-91.

Zaaijer HL, Cuypers HT, Reesink HW, Winkel IN, Gerken G, Lelie PN. Reliability of polymerase chain reaction for detection of hepatitis C virus. Lancet 1993; 341(8847):722-4.

Zaaijer HL, Kok M, Lelie PN, Timmerman RJ, Chau K, van der Pal HJ. Hepatitis E in The Netherlands: imported and endemic. Lancet 1993; 341(8848):826.

Zaaijer HL, van Exel-Oehlers P, Kraaijeveld T, Altena E, Lelie PN. Early detection of antibodies to HIV-1 by third-generation assays. Lancet 1992; 340(8822):770-2.