Didrik F Vestrheim

Summary

Affiliation: Norwegian Institute of Public Health
Country: Norway

Publications

  1. doi Effectiveness of a 2+1 dose schedule pneumococcal conjugate vaccination programme on invasive pneumococcal disease among children in Norway
    Didrik F Vestrheim
    Division of Infectious Disease Control, Norwegian Institute of Public Health, Nydalen, Oslo, Norway
    Vaccine 26:3277-81. 2008
  2. pmc Postvaccination increase in serotype 19A pneumococcal disease in Norway is driven by expansion of penicillin-susceptible strains of the ST199 complex
    Didrik F Vestrheim
    Department of Bacteriology and Immunology, Norwegian Institute of Public Health, Oslo, Norway
    Clin Vaccine Immunol 19:443-5. 2012
  3. doi Geographical differences in seroprevalence of Borrelia burgdorferi antibodies in Norway, 2011-2013
    Didrik F Vestrheim
    Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway European Public Health Microbiology Training Programme EUPHEM, European Centre for Disease Prevention and Control, Stockholm, Sweden Electronic address
    Ticks Tick Borne Dis 7:698-702. 2016
  4. pmc Recovery of Bordetella pertussis from PCR-positive nasopharyngeal samples is dependent on bacterial load
    Didrik F Vestrheim
    Department of Bacteriology and Immunology, Norwegian Institute of Public Health, Oslo, Norway
    J Clin Microbiol 50:4114-5. 2012
  5. doi Indirect effect of conjugate pneumococcal vaccination in a 2+1 dose schedule
    Didrik F Vestrheim
    Division of Infectious Disease Control, Norwegian Institute of Public Health, NO 0403Oslo, Norway
    Vaccine 28:2214-21. 2010
  6. doi Pherotypes of pneumococcal strains co-existing in healthy children
    Didrik F Vestrheim
    Department of Bacteriology and Immunology, Norwegian Institute of Public Health, Oslo, Norway
    Infect Genet Evol 11:1703-8. 2011
  7. pmc Impact of a pneumococcal conjugate vaccination program on carriage among children in Norway
    Didrik F Vestrheim
    Department of Bacteriology and Immunology, Division of Infectious Disease Control, Norwegian Institute of Public Health, Nydalen, Oslo, Norway
    Clin Vaccine Immunol 17:325-34. 2010
  8. doi Prompt effect of replacing the 7-valent pneumococcal conjugate vaccine with the 13-valent vaccine on the epidemiology of invasive pneumococcal disease in Norway
    Anneke Steens
    Division of Infectious Disease Control, Norwegian Institute of Public Health, Oslo, Norway European Programme for Intervention Epidemiology Training EPIET, European Centre for Disease Prevention and Control ECDC, Stockholm, Sweden Electronic address
    Vaccine 31:6232-8. 2013
  9. pmc Phenotypic and genotypic characterization of Streptococcus pneumoniae strains colonizing children attending day-care centers in Norway
    Didrik F Vestrheim
    Department of Bacteriology and Immunology, Division of Infectious Disease Control, Norwegian Institute of Public Health, P O Box 4404 Nydalen, N 0403 Oslo, Norway
    J Clin Microbiol 46:2508-18. 2008
  10. pmc Decline in early childhood respiratory tract infections in the Norwegian mother and child cohort study after introduction of pneumococcal conjugate vaccination
    Maria C Magnus
    Department of Chronic Diseases, Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
    Pediatr Infect Dis J 31:951-5. 2012

Collaborators

Detail Information

Publications14

  1. doi Effectiveness of a 2+1 dose schedule pneumococcal conjugate vaccination programme on invasive pneumococcal disease among children in Norway
    Didrik F Vestrheim
    Division of Infectious Disease Control, Norwegian Institute of Public Health, Nydalen, Oslo, Norway
    Vaccine 26:3277-81. 2008
    ..No vaccine failure was seen after complete primary immunization with two vaccine doses. Our findings indicate that PCV-7 provides highly effective protection against vaccine serotype IPD when administered in a 2+1 dose schedule...
  2. pmc Postvaccination increase in serotype 19A pneumococcal disease in Norway is driven by expansion of penicillin-susceptible strains of the ST199 complex
    Didrik F Vestrheim
    Department of Bacteriology and Immunology, Norwegian Institute of Public Health, Oslo, Norway
    Clin Vaccine Immunol 19:443-5. 2012
    ..Hence, serotype 19A replacement occurs, although it is not driven by antibiotic selection pressure...
  3. doi Geographical differences in seroprevalence of Borrelia burgdorferi antibodies in Norway, 2011-2013
    Didrik F Vestrheim
    Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway European Public Health Microbiology Training Programme EUPHEM, European Centre for Disease Prevention and Control, Stockholm, Sweden Electronic address
    Ticks Tick Borne Dis 7:698-702. 2016
    ..The Borrelia seroprevalence varied by geography and increased by age. The results indicate regional differences in pre-test probabilities for positive test results, and can inform the interpretation of laboratory results. ..
  4. pmc Recovery of Bordetella pertussis from PCR-positive nasopharyngeal samples is dependent on bacterial load
    Didrik F Vestrheim
    Department of Bacteriology and Immunology, Norwegian Institute of Public Health, Oslo, Norway
    J Clin Microbiol 50:4114-5. 2012
    ..Growth was associated with a high bacterial load, as determined by PCR. Culture from PCR-positive samples is a feasible approach to recover B. pertussis isolates, and culture can be limited to samples with a high bacterial load...
  5. doi Indirect effect of conjugate pneumococcal vaccination in a 2+1 dose schedule
    Didrik F Vestrheim
    Division of Infectious Disease Control, Norwegian Institute of Public Health, NO 0403Oslo, Norway
    Vaccine 28:2214-21. 2010
    ..No vaccine failure was identified, indicating a very high effectiveness of the 2+1 dose schedule vaccination programme...
  6. doi Pherotypes of pneumococcal strains co-existing in healthy children
    Didrik F Vestrheim
    Department of Bacteriology and Immunology, Norwegian Institute of Public Health, Oslo, Norway
    Infect Genet Evol 11:1703-8. 2011
    ..3%). The observed distribution of pherotypes in sets of co-colonising pneumococcal strains did not differ from the probability estimate. Thus, co-colonisation of S. pneumoniae in healthy children is not restricted by pherotype...
  7. pmc Impact of a pneumococcal conjugate vaccination program on carriage among children in Norway
    Didrik F Vestrheim
    Department of Bacteriology and Immunology, Division of Infectious Disease Control, Norwegian Institute of Public Health, Nydalen, Oslo, Norway
    Clin Vaccine Immunol 17:325-34. 2010
    ..Direct and indirect protection of PCV7 against nasopharyngeal colonization was inferred from an overall decrease in carriage of PCV7 serotypes. No preference was found for nonsusceptible clones among the replacing non-PCV7 serotypes...
  8. doi Prompt effect of replacing the 7-valent pneumococcal conjugate vaccine with the 13-valent vaccine on the epidemiology of invasive pneumococcal disease in Norway
    Anneke Steens
    Division of Infectious Disease Control, Norwegian Institute of Public Health, Oslo, Norway European Programme for Intervention Epidemiology Training EPIET, European Centre for Disease Prevention and Control ECDC, Stockholm, Sweden Electronic address
    Vaccine 31:6232-8. 2013
    ..As this suggests that serotype replacement is again occurring, continues monitoring of IPD is important so that adaptations to vaccine recommendations can be promptly issued...
  9. pmc Phenotypic and genotypic characterization of Streptococcus pneumoniae strains colonizing children attending day-care centers in Norway
    Didrik F Vestrheim
    Department of Bacteriology and Immunology, Division of Infectious Disease Control, Norwegian Institute of Public Health, P O Box 4404 Nydalen, N 0403 Oslo, Norway
    J Clin Microbiol 46:2508-18. 2008
    ..Our study indicates that carriage of S. pneumoniae is highly prevalent among children in Norwegian DCCs, with a genetically diverse pneumococcal population consisting of unique microepidemic DCC populations...
  10. pmc Decline in early childhood respiratory tract infections in the Norwegian mother and child cohort study after introduction of pneumococcal conjugate vaccination
    Maria C Magnus
    Department of Chronic Diseases, Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
    Pediatr Infect Dis J 31:951-5. 2012
    ..A substantial effectiveness of PCV7 immunization against invasive pneumococcal disease has been demonstrated, whereas evidence of its impact on respiratory tract infections are less consistent...
  11. ncbi [Bacterial resistance against antibiotics]
    E Arne Høiby
    Avdeling for bakteriologi og infeksjonsimmunologi Nasjonalt folkehelseinstitutt Postboks 4404 Nydalen 0403 Oslo
    Tidsskr Nor Laegeforen 128:2452-6. 2008
    ..Antibiotic resistance has progressed over many decades and is increasingly problematic. This paper gives a short summary of antibiotic resistance and its biology...
  12. doi Decreased Carriage and Genetic Shifts in the Streptococcus pneumoniae Population After Changing the Seven-valent to the Thirteen-valent Pneumococcal Vaccine in Norway
    Anneke Steens
    From the Division of Infectious Disease Control, Department of Bacteriology and Immunology, Norwegian Institute of Public Health, Oslo, Norway Faculty of Medicine, University of Oslo, Oslo, Norway and European Programme for Public Health Microbiology Training EUPHEM, European Centre for Disease Prevention and Control ECDC, Stockholm, Sweden
    Pediatr Infect Dis J 34:875-83. 2015
    ..We assessed effects of the switch by comparing pneumococcal carriage and serotype and genetic diversity of pneumococci carried by children in the PCV13-era with those carried in the prevaccination-era and PCV7-era...
  13. pmc In vitro and in vivo comparison of transport media for detecting nasopharyngeal carriage of Streptococcus pneumoniae
    Anneke Steens
    Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway Faculty of Medicine, University of Oslo, Oslo, Norway
    Peerj 4:e2449. 2016
    ..An enrichment broth used for transport at room temperature in three carriage studies performed in Norway may have a higher sensitivity than STGG. We therefore compared the media in vitro and in vivo...
  14. doi Pneumococcal vaccination in older adults in the era of childhood vaccination: Public health insights from a Norwegian statistical prediction study
    Anneke Steens
    Division of Infectious Disease Control, Norwegian Institute of Public Health, Norway European Programme for Intervention Epidemiology Training EPIET, European Centre for Disease Prevention and Control ECDC, Sweden Electronic address
    Epidemics 11:24-31. 2015
    ..Our study demonstrates the importance of increasing PPV23 uptake and of developing vaccines that confer broader immunity...