Enhancing vitamin D levels in care homes: the role of healthy building design in preventing respiratory infections.

The recent article by Willcox et al. in the Journal of Public Health highlights the effectiveness of antiviral prophylaxis and high-dose vitamin D supplementation in reducing acute respiratory infections (ARIs) in care homes. This correspondence extends the discussion by emphasizing the critical role of healthy building design in enhancing vitamin D levels, which is vital for immune function and ARI prevention.