Factors associated with incomplete vaccination schedules in children under six years of age attending a social security center in Pedro Juan Caballero, Paraguay

Authors

  • Giovani Efraín Carvalho Carrera de Enfermería, Facultad de la Universidad del Norte en Pedro Juan Caballero, Paraguay Autor/a
  • Fredy Ramón Cabrera Villalba Carrera de Enfermería, Facultad de la Universidad del Norte en Pedro Juan Caballero, Paraguay Autor/a

DOI:

https://doi.org/10.5281/zenodo.21808713

Keywords:

vaccination, immunization schedule, missed opportunities for vaccination, adverse events following immunization, parental knowledge, Paraguay

Abstract

Introduction: Timely vaccination in early childhood prevents potentially fatal diseases, yet immunization coverage still falls short of recommended targets across large regions of Latin America. Objective: To describe factors related to incomplete vaccination schedules in children under six years of age attending a social security center in Pedro Juan Caballero, Paraguay, between February and June 2023. Materials and methods: Observational, descriptive, cross-sectional study. Eighty children under 6 years and their mothers or caregivers were included; a structured questionnaire on sociodemographic characteristics, knowledge and attitudes toward vaccination was administered, together with review of the child's health booklet to verify vaccination status. Analysis was exclusively descriptive. Results: Most children were aged 1–4 years (34/80; 42.5%), female (48/80; 60%) and from urban areas (78/80; 97.5%). Among mothers or caregivers, 41% (33/80) had stable employment and 34% (27/80) did not work; 37% (30/80) had reached higher education. Fifty-one percent (41/80) reported always receiving information on the importance of vaccines, mainly from nursing staff (55%; 44/80). Fifty-nine percent (47/80) of children had some post-vaccination reaction, almost always mild (fever, pain or redness in 90%; 72/80); a single case (1.25%) recorded a severe reaction, without an established link to vaccination. Most children in the sample did not have a complete vaccination schedule. Conclusions: Incomplete vaccination in this population was associated with lack of time, fear of post-vaccination reactions, partial stockouts at the health center and misinformation among some mothers or caregivers, rather than active vaccine refusal.

Downloads

Download data is not yet available.

References

Mohamud AM, Abdi MA, Abdullahi AM, *et al.* Prevalence and factors contributing to missed opportunities for vaccination in Mogadishu, Somalia. IJID Reg. 2025;14:100507. https://doi.org/10.1016/j.ijregi.2024.100507

Dadari I, Belt R, Iyengar A, *et al.* Achieving the IA2030 Coverage and Equity Goals through a Renewed Focus on Urban Immunization. Vaccines (Basel). 2023;11(4):809. https://doi.org/10.3390/vaccines11040809

Beetch J, Janitz AE, Beebe LA, *et al.* Indirect Effects of the COVID-19 Pandemic on Routine Childhood Vaccination in Low-Income Countries: A Systematic Review to Set the Scope for Future Pandemics. Microorganisms. 2024;12(3):573. https://doi.org/10.3390/microorganisms12030573

Rau C, Lüdecke D, Dumolard L, *et al.* Data quality of reported child immunization coverage in 194 countries between 2000 and 2019. PLOS Glob Public Health. 2022;2(2):e0000140. https://doi.org/10.1371/journal.pgph.0000140

Hortal M, Di Fábio JL. Rechazo y gestión en vacunaciones: sus claroscuros. Rev Panam Salud Publica. 2019;43:1. https://doi.org/10.26633/rpsp.2019.54

Falleiros-Arlant LH, Ávila-Agüero ML, Brea-del Castillo J, *et al.* Declaración SLIPE: aumento de la cobertura antipoliomielítica con vacunas más seguras: una urgencia inaplazable en Latinoamérica. Rev Chil Infectol. 2022;39(5):604-613. https://doi.org/10.4067/s0716-10182022000500604

Garib Z, Vargas AL, Trumbo SP, *et al.* Missed Opportunities for Vaccination in the Dominican Republic: Results of an Operational Investigation. Biomed Res Int. 2016;2016:1-9. https://doi.org/10.1155/2016/4721836

Li AJ, Tabu C, Shendale S, *et al.* Assessment of missed opportunities for vaccination in Kenyan health facilities, 2016. PLoS One. 2020;15(8):e0237913. https://doi.org/10.1371/journal.pone.0237913

Guiñazú G, Fortini Cabarcos N, Mammi LF, *et al.* Pesquisa sobre vacunación y oportunidades de prevención y educación para la salud. Experiencia en una residencia pediátrica mediante el Mini-Clinical Evaluation Exercise. Arch Argent Pediatr. 2018;116(4):e552-e558. https://doi.org/10.5546/aap.2018.291

Tagbo BN, Eke CB, Omotowo B, *et al.* Vaccination Coverage and Its Determinants in Children Aged 11-23 Months in an Urban District of Nigeria. World J Vaccines. 2014;4(4):175-183. https://doi.org/10.4236/wjv.2014.44020

Khan MT, Zaheer S, Shafique K. Maternal education, empowerment, economic status and child polio vaccination uptake in Pakistan: a population based cross sectional study. BMJ Open. 2017;7(3):e013853. https://doi.org/10.1136/bmjopen-2016-013853

Cockcroft A, Usman M, Nyamucherera OF, *et al.* Why children are not vaccinated against measles: a cross-sectional study in two Nigerian States. Arch Public Health. 2014;72(1):48. https://doi.org/10.1186/2049-3258-72-48

Xeuatvongsa A, Hachiya M, Miyano S, *et al.* Determination of factors affecting the vaccination status of children aged 12-35 months in Lao People's Democratic Republic. Heliyon. 2017;3(3):e00265. https://doi.org/10.1016/j.heliyon.2017.e00265

Sebastian J, Parthasarathi G, Ravi MD, *et al.* Active surveillance of adverse events following immunization (AEFI): a prospective 3-year vaccine safety study. Ther Adv Vaccines Immunother. 2019;7. https://doi.org/10.1177/2515135519889000

Kadhim DJ, Younus MM. Assessment of Causality, Severity and Seriousness of Adverse Event Following Immunization in Iraq: A Retrospective Study. Iraqi J Pharm Sci. 2019;28(2):142-150. https://doi.org/10.31351/vol28iss2pp142-150

Li AJ, Tabu C, Shendale S, *et al.* Qualitative insights into reasons for missed opportunities for vaccination in Kenyan health facilities. PLoS One. 2020;15(3):e0230783. https://doi.org/10.1371/journal.pone.0230783

Notejane M, Zuniño C, Aguirre D, *et al.* Estado vacunal y motivos de no vacunación contra el virus del papiloma humano en adolescentes admitidas en el Hospital Pediátrico del Centro Hospitalario Pereira Rossell. Rev Med Urug. 2018;34(2):74-83. https://doi.org/10.29193/rmu.34.2.1

Published

2026-07-15

Issue

Section

Original Articles

How to Cite

Factors associated with incomplete vaccination schedules in children under six years of age attending a social security center in Pedro Juan Caballero, Paraguay. (2026). Revista UniNorte De Medicina Y Ciencias De La Salud, 15(2), 64–69. https://doi.org/10.5281/zenodo.21808713