Causation or confounding: why controls are critical for characterizing long COVID

Nat Med. 2021 Jul;27(7):1129-1130. doi: 10.1038/s41591-021-01402-w.

Authors

Zahin Amin-Chowdhury¹, Shamez N Ladhani^{2

3}

Affiliations

¹ Immunisation and Countermeasures Division, Public Health England, London, UK.
² Immunisation and Countermeasures Division, Public Health England, London, UK. shamez.ladhani@phe.gov.uk.
³ Paediatric Infectious Diseases Research Group, St. George's University of London, London, UK. shamez.ladhani@phe.gov.uk.

PMID: 34140704
DOI: 10.1038/s41591-021-01402-w

No abstract available

Publication types

Letter

MeSH terms

COVID-19 / complications*
COVID-19 / epidemiology
COVID-19 / etiology
Case-Control Studies
Causality*
Confounding Factors, Epidemiologic*
Humans
Post-Acute COVID-19 Syndrome
SARS-CoV-2 / isolation & purification