Hands-free faucets unhygienic: Study

A recent study at Johns Hopkins Hospital in Baltimore has found that electronic hands-free faucets are less hygienic than the manual ones. The study examined water samples from all Johns Hopkins’ taps, and found that half of the electronic taps grew cultures of Legionella bacteria—which can cause pneumonia in those with weakened immune systems—compared to only 15% of manual faucets.