You raise a very interesting point about the limits of personal responsibility when it comes to protecting and promoting public health. Yes, we all should do our part and wash our hands, cough in our sleeves and stay home when sick but this is only one part of the solution. The other crucial part is our collective responsibility of taking care of our common spaces, of building and in particular schools and hospitals. The great advances of public health historically have come out of collective action. We curbed infectious diseases by providing clean water to people’s homes and mass vaccination campaigns. Regulation has also played a role – in improving workplace safety, for example, or motor vehicle safety, which have yielded high gains in terms of increasing life expectancy and decreasing death and disability over the past century.