David Greenberg1, Noga Givon-Lavi2, Shalom Ben-Shimol2, Jacob Bar Ziv3, Ron Dagan2. 1. The Pediatric Infectious Disease Unit, Soroka University Medical Center, Beer-Sheva, Israel; The Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel. Electronic address: dudi@bgu.ac.il. 2. The Pediatric Infectious Disease Unit, Soroka University Medical Center, Beer-Sheva, Israel; The Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel. 3. Department of Radiology, Hadassah University Medical Center, Jerusalem, Israel.
Abstract
BACKGROUND: Alveolar community-acquired pneumonia (A-CAP) is mostly considered a bacterial disease, mainly pneumococcal. This study was conducted to document the impact of sequential 7-valent and the 13-valent pneumococcal conjugate vaccines (PCV7; PCV13) on emergency room and hospitalization for A-CAP among children <5 years of age. METHODS: This is an ongoing prospective population-based study in southern Israel. The current analysis spans over the period July 2002 through June 2013. A-CAP was defined using the World Health Organization (WHO)'s criteria for radiologically-confirmed pneumonia. PCV7 was introduced in Israel in July 2009 and gradually replaced by PCV13 in November 2010. Pneumococcal conjugate vaccine (PCV) impact was calculated by comparing incidences during 3 pre-defined periods: pre-PCV (2002-2008), PCV7 (2010-2011) and PCV13 (2012-2013). RESULTS: Overall, 10,142 A-CAP episodes occurred. The annual incidences (per 1,000 inhabitants) in children <5 years old declined from a mean (±standard deviation) of 13.8 ± 0.9 in the pre-PCV period to 11.2 ± 2.7 in the PCV7 period and 7.4 in the PCV13 period, representing a reduction of 13% and 47%, respectively. The overall decrease was significantly faster among outpatients than among hospitalized children (42% and -8%, respectively in the PCV7 period; 68% vs. 32% in hospitalized children in the PCV13 period). While in children 12-23 months a significant decline was observed during the PCV7 and PCV13 periods, significant declines in A-CAP rates were observed only during the PCV13 period in the <12 months and 24-59 months age groups (44% and 46%, respectively). CONCLUSIONS: A moderate decline in hospital A-CAP visits in children <5 years old was observed after PCV7 introduction. In contrast, after PCV13 introduction a substantial reduction in all visits was evident.
BACKGROUND: Alveolar community-acquired pneumonia (A-CAP) is mostly considered a bacterial disease, mainly pneumococcal. This study was conducted to document the impact of sequential 7-valent and the 13-valent pneumococcal conjugate vaccines (PCV7; PCV13) on emergency room and hospitalization for A-CAP among children <5 years of age. METHODS: This is an ongoing prospective population-based study in southern Israel. The current analysis spans over the period July 2002 through June 2013. A-CAP was defined using the World Health Organization (WHO)'s criteria for radiologically-confirmed pneumonia. PCV7 was introduced in Israel in July 2009 and gradually replaced by PCV13 in November 2010. Pneumococcal conjugate vaccine (PCV) impact was calculated by comparing incidences during 3 pre-defined periods: pre-PCV (2002-2008), PCV7 (2010-2011) and PCV13 (2012-2013). RESULTS: Overall, 10,142 A-CAP episodes occurred. The annual incidences (per 1,000 inhabitants) in children <5 years old declined from a mean (±standard deviation) of 13.8 ± 0.9 in the pre-PCV period to 11.2 ± 2.7 in the PCV7 period and 7.4 in the PCV13 period, representing a reduction of 13% and 47%, respectively. The overall decrease was significantly faster among outpatients than among hospitalized children (42% and -8%, respectively in the PCV7 period; 68% vs. 32% in hospitalized children in the PCV13 period). While in children 12-23 months a significant decline was observed during the PCV7 and PCV13 periods, significant declines in A-CAP rates were observed only during the PCV13 period in the <12 months and 24-59 months age groups (44% and 46%, respectively). CONCLUSIONS: A moderate decline in hospital A-CAP visits in children <5 years old was observed after PCV7 introduction. In contrast, after PCV13 introduction a substantial reduction in all visits was evident.
Authors: I Rivero-Calle; J Pardo Seco; P F Raguindin; F Alvez; J Gómez-Rial; A Salas; J Martinón Sanchez; F Martinón-Torres Journal: Hum Vaccin Immunother Date: 2019-12-18 Impact factor: 3.452
Authors: Oana G Falup-Pecurariu; Javier Diez-Domingo; Susanna Esposito; Adam Finn; Fernanda Rodrigues; Vana Spoulou; George A Syrogiannopoulos; Vytautas Usonis; David Greenberg Journal: Eur J Pediatr Date: 2018-05-11 Impact factor: 3.183
Authors: Lucia Helena de Oliveira; Luiz Antonio B Camacho; Evandro S F Coutinho; Martha S Martinez-Silveira; Ana Flavia Carvalho; Cuauhtemoc Ruiz-Matus; Cristiana M Toscano Journal: PLoS One Date: 2016-12-12 Impact factor: 3.240