Response to pneumococcal conjugate and polysaccharide vaccination in children with rheumatic disease
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Response to pneumococcal conjugate and polysaccharide vaccination in children with rheumatic disease. / Jensen, Lotte; Christensen, Anne Estmann; Nielsen, Susan; Pedersen, Freddy Karup; Rosthoj, Susanne; Jorgensen, Charlotte Svaerke; Poulsen, Anja.
In: Scandinavian Journal of Immunology, Vol. 95, No. 2, e13118, 2022.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Response to pneumococcal conjugate and polysaccharide vaccination in children with rheumatic disease
AU - Jensen, Lotte
AU - Christensen, Anne Estmann
AU - Nielsen, Susan
AU - Pedersen, Freddy Karup
AU - Rosthoj, Susanne
AU - Jorgensen, Charlotte Svaerke
AU - Poulsen, Anja
PY - 2022
Y1 - 2022
N2 - Children with rheumatic disease and compromised immune system have an increased risk of infection. Streptococcus pneumoniae is a frequent pathogen, and immunization is recommended. In this study, we investigated whether immunocompromised children with rheumatic disease do respond to pneumococcal immunization with 13-valent pneumococcal conjugate vaccine followed by 23-valent pneumococcal polysaccharide vaccine. The study was conducted at two tertiary referral hospitals in Denmark from 2015 to 2018. Patients with rheumatic disease and compromised immune system aged 2-19 years were eligible. Patients were vaccinated with 13-valent pneumococcal conjugate vaccine followed by 23-valent pneumococcal polysaccharide vaccine. A blood sample was collected before vaccination and after each vaccination. IgG antibodies were quantified for twelve serotypes. Seroprotection for each serotype was defined as IgG ≥0.35 µg/mL. A total of 27 patients were enrolled. After the conjugate vaccine, an increase in antibody titres compared with pre-vaccination was found for all serotypes and 9/12 were significant. After the polysaccharide vaccine, the antibody titres for all serotypes but one was seen to increase but none reached significance. The proportion of patients protected before immunization ranged from 20.8% to 100% for the individual serotypes. Odds ratio for achieving seroprotection after the conjugate vaccine was >1 for 10/12 serotypes but only significant for three serotypes. After the polysaccharide vaccine, the odds ratio was >1 for 9/12 serotypes but none reached significance. In conclusion, children with rheumatic disease and compromised immune system respond to pneumococcal immunization with 13-valent pneumococcal conjugate vaccine and maintain antibody levels upon subsequent immunization with 23-valent pneumococcal polysaccharide vaccine.
AB - Children with rheumatic disease and compromised immune system have an increased risk of infection. Streptococcus pneumoniae is a frequent pathogen, and immunization is recommended. In this study, we investigated whether immunocompromised children with rheumatic disease do respond to pneumococcal immunization with 13-valent pneumococcal conjugate vaccine followed by 23-valent pneumococcal polysaccharide vaccine. The study was conducted at two tertiary referral hospitals in Denmark from 2015 to 2018. Patients with rheumatic disease and compromised immune system aged 2-19 years were eligible. Patients were vaccinated with 13-valent pneumococcal conjugate vaccine followed by 23-valent pneumococcal polysaccharide vaccine. A blood sample was collected before vaccination and after each vaccination. IgG antibodies were quantified for twelve serotypes. Seroprotection for each serotype was defined as IgG ≥0.35 µg/mL. A total of 27 patients were enrolled. After the conjugate vaccine, an increase in antibody titres compared with pre-vaccination was found for all serotypes and 9/12 were significant. After the polysaccharide vaccine, the antibody titres for all serotypes but one was seen to increase but none reached significance. The proportion of patients protected before immunization ranged from 20.8% to 100% for the individual serotypes. Odds ratio for achieving seroprotection after the conjugate vaccine was >1 for 10/12 serotypes but only significant for three serotypes. After the polysaccharide vaccine, the odds ratio was >1 for 9/12 serotypes but none reached significance. In conclusion, children with rheumatic disease and compromised immune system respond to pneumococcal immunization with 13-valent pneumococcal conjugate vaccine and maintain antibody levels upon subsequent immunization with 23-valent pneumococcal polysaccharide vaccine.
KW - paediatric
KW - pneumococcal
KW - vaccination
U2 - 10.1111/sji.13118
DO - 10.1111/sji.13118
M3 - Journal article
C2 - 34768311
VL - 95
JO - Scandinavian Journal of Immunology, Supplement
JF - Scandinavian Journal of Immunology, Supplement
SN - 0301-6323
IS - 2
M1 - e13118
ER -
ID: 285789970