Few patients receiving SARS-CoV-2 vaccines may experience rare but serious adverse events such as transverse myelitis (TM). Today, data about TM are scarce.

The objective was to investigate reports of TM adverse events related to SARS-CoV-2 vaccines labelled by FDA and EMA, including ChAdOx1nCov-19 (Oxford-AstraZeneca), BNT162b2 (Pfizer/BioNTech), mRNA-1273 (Moderna) and Ad26.COV2.S (Janssen/Johnson & Johnson) and using the World Health Organization's (WHO) pharmacovigilance database: VigiBase.

Here, investigators use the World Health Organization's (WHO) database of individual safety case reports, to identify cases of TM related to SARS-CoV-2 vaccines.

Inclusion Criteria:

- case reported in the World Health Organization (WHO) database (VigiBase) of individual safety case reports at the time of the extraction,

Exclusion Criteria:

• chronology not compatible between the SARS-CoV-2 vaccine adminisration and onset of TM.
• vaccines non-labelled by FDA/EMA (data cutoff december 10, 2021)

All patients