Author Affiliation: Medical Department, 3M Company, St Paul, Minnesota (email@example.com).
To the Editor: Dr Grandjean and colleagues1 suggested that perfluorinated compounds (PFCs) may increase a child's risk for not being protected against diphtheria and tetanus and may indicate the potential for other immune system deficits. Not cited were data that do not support their concern, and the authors did not adequately characterize immunotoxicology data.
Zobel LR, Olsen GW, Butenhoff JL. Perfluorinated Compounds and Immunotoxicity in Children. JAMA. 2012;307(18):1910–1911. doi:10.1001/jama.2012.3599