Influenza seasonality in the tropics and subtropics: when to vaccinate?

Hirve, S., Newman, L.P., Paget, J., Azziz-Baumgartner, E., Fitzner, J., Bhat, N., Vandemaele, K., Zhang, W. Influenza seasonality in the tropics and subtropics: when to vaccinate? PLoS One: 2016, 11(4)