Studies and Research
Introductory information …
Please note throughout, that HFDF does not necessarily endorse or support any policy arguments or specific assumptions made by the authors. HFDF commentary describes and summarizes the role this study plays in the scientific discourse and provides abbreviated notes.
Recently Posted Studies
-
The association between acute transverse myelitis and COVID-19 vaccination in Korea: Self-controlled case series study
Journal: European Journal of NeurologyLead Author:
Lim, Kim, et al.Original date of publication:
12/30/2024The study found a significant increase (two to threefold) in the risk of acute transverse myelitis (ATM) associated with COVID-19 vaccinations within 1-42 days compared to the pre-vaccination (unvaccinated) period. The study identifies safety signals for spinal cord inflammation across all COVID-19 vaccine platforms- viral vector or mRNA. The authors recommended that, “physicians should exercise caution regarding the possibility of ATM following vaccination, enabling early diagnosis and appropriate management.”
-
Incident SARS-CoV-2 Infection among mRNA-Vaccinated and Unvaccinated Nursing Home Residents
In this non-peer reviewed commentary to NEJM pushing the importance of covid-19 vaccination, nursing home patients see same drop in infection fatality rate over same timeline, whether vaccinated or not. Alleged drop in mortality is not statistically significant and is a product of fewer cases. Author’s summary ascribes all positive movement epidemiologically to vaccination, masking, and infection control measures.
-
Expression of SARS-CoV-2 spike protein in cerebral Arteries: Implications for hemorrhagic stroke Post-mRNA vaccination
Journal: Journal of Clinical NeuroscienceLead Author:
Nakao Ota, et alOriginal date of publication:
06/01/2025Japanese scientists published a recent study showing new evidence of COV-19 mRNA vaccine spike protein persisting in cerebral arteries of 43.8% of haemorrhagic stroke patients up to 17 months post-vaccination with absence of infection, expressing concerns about vaccine biodistribution and long-term safety.
