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  • Erratum
  • Open Access

Erratum to: A threshold method for immunological correlates of protection

  • 1,
  • 2,
  • 3Email author,
  • 4, 5 and
  • 6
BMC Medical Research MethodologyBMC series – open, inclusive and trusted201717:19

  • Published:

The original article was published in BMC Medical Research Methodology 2013 13:29


After publication of the original article [1], it came to the authors’ attention that there was an error in the Testing for the existence of a threshold sub-section of the Methods.

Two formulae originally published in this sub-section were incorrect; the correct expressions are the negatives of the expressions published. The formulae should have appeared as follows:
$$ \mathrm{D} = 2\mathrm{l}\left(\mathrm{a},\mathrm{b},\uptau \right)\ \hbox{--}\ 2\mathrm{l}\left({\mathrm{a}}^{'}\right) $$
$$ \mathrm{D}' = 2\mathrm{l}\left(\mathrm{a},\mathrm{b},\uptau \right)\ \hbox{--}\ 2\mathrm{l}\left(\mathrm{a}'\right)\ \mathrm{f}\mathrm{o}\mathrm{r}\ \mathrm{a} > \mathrm{b}. $$



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Authors’ Affiliations

Sanofi Pasteur, Beijing, China
Sanofi Pasteur, Marcy L’Etoile, France
United Biosource Corporation, London, UK
Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
Present address:, Inc, Seattle, WA, USA
Sanofi Pasteur, Swiftwater, PA, USA


  1. Chen X, Bailleux F, Desai K, Qin L, Dunning AJ. A threshold method for immunological correlates of protection. BMC Med Res Methodol. 2013;13:29. doi:10.1186/1471-2288-13-29.View ArticlePubMedPubMed CentralGoogle Scholar


© The Author(s). 2017