SMS-Based Active Surveillance of Adverse Events following Immunization in Children: The VigiVax Study.

ABSTRACT: Underreporting is the main limitation of spontaneous reporting systems. This cohort-event monitoring study aims to examine the potential of short message service (SMS)-based surveillance compared to traditional surveillance systems. Using VigiVax software, parents of vaccinated children aged two years or younger, in the period March 2021-May 2022, received a single SMS inquiry about adverse events following immunization (AEFI). Responses were collected, validated by health operators and integrated with the information on electronic immunization registries. AEFI reports were automatically submitted to the Italian Pharmacovigilance system. Among 254,160 SMS messages sent, corresponding to 451,656 administered doses (AD), 71,643 responses were collected (28.2% response rate), and 21,231 of th

SUBMITTER: Gonella LA 

PROVIDER: S-EPMC11435886 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature