Cambodia admits a ship from which an allegedly infected person then flies to Malaysia - no quarantine/isolation beforehand despite numerous other countries previously denying that ship access for valid concerns. Now, why would Cambodia do that? The cynic in me finds it hard not to consider the massive amounts of money China is pouring into Cambodia (and elsewhere) a factor in their decision - and that's even before considering the possibility of there being some "brown paper bags" in the mix.
So, as per news reports, one infected passenger flies to Malaysia and some 1000 others off that ship fly to many destinations out of Phnom Penh.
Some countries are implementing harsh but justified conditions to protect people - and then others ...............................