Title |
Humoral immune response to measles and varicella vaccination in former very low birth weight preterm infants
|
---|---|
Published in |
Brazilian Journal of Infectious Diseases, January 2018
|
DOI | 10.1016/j.bjid.2017.12.001 |
Pubmed ID | |
Authors |
Carolina Schlindwein Mariano Ferreira, Maria Cristina Abrão Aued Perin, Maria Isabel de Moraes-Pinto, Raquel Maria Simão-Gurge, Ana Lucia Goulart, Lily Yin Weckx, Amélia Miyashiro Nunes dos Santos |
Abstract |
Immune response to vaccination in infants born prematurely may be lower than in infants born at full-term. Some clinical factors might be associated with humoral immune response. The objectives of this study were to compare the immune response to measles and varicella vaccination in infants born prematurely with those born at full-term and to analyze factors associated with measles and varicella antibody levels. Prospective study including two groups of infants aged 12 months. One group of infants born prematurely with birth-weight <1500g and who were in follow-up at the outpatient clinic for preterm infants at the institution and other group of infants born at full-term. Infants with malformations, primary immunodeficiency diseases, born to HIV-positive mothers or who had received plasma or immunoglobulin transfusions five months before or three weeks after vaccination were excluded. Plasma antibodies were measured by ELISA and factors associated with antibody levels were assessed by linear regression. Sixty-five premature and 56 full-term infants were included. The percentage of immune individuals after vaccination against measles (100% vs. 100%) and varicella (92.5% vs. 93.2%) were similar in both groups, as well as the antibody levels against measles (2.393 vs. 2.412UI/mL; p=0.970) and varicella (0.551 vs. 0.399UI/mL; p=0.114). Use of antenatal corticosteroids decreased measles antibody levels whereas breastfeeding for more than six months increased varicella antibody levels. Humoral responses to measles and varicella were similar between infants born prematurely and full-term infants. Measles antibody levels were negatively associated with antenatal corticosteroid use; varicella antibodies were positively associated with prolonged breastfeeding. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 3 | 43% |
United States | 1 | 14% |
Brazil | 1 | 14% |
Unknown | 2 | 29% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Practitioners (doctors, other healthcare professionals) | 5 | 71% |
Members of the public | 2 | 29% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 87 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Master | 12 | 14% |
Student > Bachelor | 11 | 13% |
Researcher | 10 | 11% |
Student > Doctoral Student | 8 | 9% |
Unspecified | 6 | 7% |
Other | 16 | 18% |
Unknown | 24 | 28% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 21 | 24% |
Nursing and Health Professions | 12 | 14% |
Unspecified | 6 | 7% |
Biochemistry, Genetics and Molecular Biology | 4 | 5% |
Agricultural and Biological Sciences | 2 | 2% |
Other | 11 | 13% |
Unknown | 31 | 36% |