860 infection control & hospital epidemiology july 2018, vol. 39, no. 7
Address correspondence to Kalisvar Marimuthu, 11 Jalan Tan Tock Seng, 308433 Singapore (
Kalisvar_marimuthu@ttsh.com.sg).
supplementary material To view supplementary material for this article, please visit
https://doi.org/10.1017/ice.2018.101.
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