Evidence map›Paper›PMID 35976470›Full record

Observational studyJournal of clinical immunology2022

Anaphylaxis to SARS-CoV-2 Vaccines in the Setting of a Nationwide Passive Epidemiological Surveillance Program.

Carla Toledo-Salinas, Selma Cecilia Scheffler-Mendoza, Lina Maria Castano-Jaramillo, José Antonio Ortega-Martell, Blanca Estela Del Rio-Navarro, Ana María Santibáñez-Copado, José Luis Díaz-Ortega, Raúl Baptista-Rosas, Paulina Sánchez-Novoa, Miguel García-Grimshaw and 3 more

Open access · bronzeAbstract readObservational Study
In one paragraph

Observational study in Journal of clinical immunology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 9 institutions in 3 countries.

Carla Toledo-SalinasComisión Coordinadora de Institutos Nacionales de Salud Y Hospitales de Alta Especialidad, Mexico City, Mexico.
Selma Cecilia Scheffler-MendozaInstituto Nacional de Pediatría, Insurgentes Sur 3700c, Mexico City, Mexico.
Lina Maria Castano-JaramilloFundación Hospital Pediátrico La Misericordia, Bogota, Colombia.
José Antonio Ortega-MartellUniversidad Autónoma de Hidalgo, Pachuca, Mexico.
Blanca Estela Del Rio-NavarroHospital Infantil de México Federico Gómez, Mexico City, Mexico.
Ana María Santibáñez-CopadoCentro Nacional Para La Salud de La Infancia Y Adolescencia, Mexico City, Mexico.
José Luis Díaz-OrtegaCentro Nacional Para La Salud de La Infancia Y Adolescencia, Mexico City, Mexico.
Raúl Baptista-RosasCentro Universitario de Tonalá, Universidad de Guadalajara, Tonala, Mexico.
Paulina Sánchez-NovoaCoordinación de Vigilancia Epidemiológica de Las Enfermedades Prevenibles Por Vacunación Y ESAVI de La Dirección General de Epidemiologia, Mexico City, Mexico.
Miguel García-GrimshawDepartment of Neurology, Instituto Nacional de Ciencias Médicas Y Nutrición Salvador Zubirán, Mexico City, Mexico.
Sergio Iván Valdés-FerrerDepartment of Neurology, Instituto Nacional de Ciencias Médicas Y Nutrición Salvador Zubirán, Mexico City, Mexico.
Gustavo Reyes-TeránComisión Coordinadora de Institutos Nacionales de Salud Y Hospitales de Alta Especialidad, Mexico City, Mexico.
David Alejandro Mendoza-HernándezInstituto Nacional de Pediatría, Insurgentes Sur 3700c, Mexico City, Mexico. drdmendoz@gmail.com.ORCID 0000-0002-6162-7136
Hospitales Regionales de Alta Especialidad · MXInstituto Nacional de Pediatria · MXDireccion General de Epidemiologia · MXFeinstein Institute for Medical Research · USFundación Hospital San Pedro · COHospital Infantil de México Federico Gómez · MXInstituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán · MXUniversidad Autónoma del Estado de Hidalgo · MXUniversidad de Guadalajara · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInformation on anaphylaxis among recipients of vaccines against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) remains scarce.

objectiveTo identify the observed incidence of anaphylaxis in recipients of different anti-SARS-CoV-2 vaccines.

methodsA nationwide observational study among recipients of 61,414,803 doses of seven different anti-SARS-CoV-2 vaccines, describing the incidence and characteristics of adult patients (age ≥ 18 years) who developed anaphylaxis as an adverse event following immunization (AEFI) against SARS-CoV-2 vaccines between December 24, 2020, and October 15, 2021, in Mexico.

resultsSixty-six patients developed anaphylaxis as an AEFI, for an overall observed incidence of 1.07 cases per 1,000,000 (95% CI 0.84-1.37) administered doses. Eighty-six percent of the patients were female, consistent with previous reports of AEFI to COVID-19 vaccines. mRNA-based vaccine recipients had the highest frequency of anaphylaxis, followed by adenovirus-vectored vaccines and inactivated virus recipients, with an observed incidence of 2.5, 0.7, and 0.2 cases per 1,000,000 doses administered, respectively. Only 46% of the patients received correct treatment with epinephrine as the first-line treatment through the appropriate route and dose. We detected one case of anaphylactic reaction-related death occurring 5 min following immunization with ChAdOx1 nCov-19 for a mortality rate of 1.5% among those who developed this AEFI.

conclusionsIn our population, anaphylactic reactions were infrequent. Our study provides further evidence supporting the security of these newly developed vaccines.

Indexed as

AnaphylaxisCOVID-19COVID-19 VaccinesAdolescentAdultChAdOx1 nCoV-19FemaleHumansMaleMexicoSARS-CoV-2ChAdOx1 nCoV-19COVID-19 VaccinesAnaphylaxisCOVID-19 vaccinesSARS-CoV-2 vaccinesVaccine anaphylaxisVaccine safety

Identifiers

PMID35976470
PMCPMC9382604
OpenAlexW4292263518

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.