Acute onset supraclavicular lymphadenopathy coinciding with intramuscular mRNA vaccination against COVID-19 may be related to vaccine injection technique, Spain, January and February 2021

Fernandez-Prada, Maria; Rivero-Calle, Irene; Calvache-Gonzalez, Ana; Martinon-Torres, Federico

Publicación: EUROSURVEILLANCE
2021
VL / 26 - BP / 8 - EP / 12
abstract
Monitoring adverse reactions following immunisation is essential, particularly for new vaccines such as those against COVID-19. We describe 20 cases of acute onset of a single supraclavicular lymphadenopathy manifesting between 24 h and 9 days after ipsilateral intramuscular administration of an mRNA-based COVID-19 vaccine, referred to our WHO Collaborating Centre for Vaccine Safety. Our results indicate that the swelling of supraclavicular lymph nodes following immunisation may constitute a benign and self-limited condition, related to a higher than recommended injection site.
192 InfluRatio

Access level

Gold DOAJ, Green published