Conducting social science research during epidemics and pandemics: lessons learnt by Van Nuil, JI, Schmidt-Sane, M, Bowmer, A, Brindle, H, Chambers, M, Dien, R, Fricke, C, Hong, YNT, Kaawa-Mafigiri, D, Lewycka, S, Rijal, S, Lees, S