[ferest]

apparently science is not working as "how things feel/look like", but about evidence and proof. Same thing applies to gov or org, it's not guided by message on social media, but according to the guidance and standard procedure. This kind of practice are very normal cross every industry, from construction safety guide to medicine testing. According to [1], WHO or CDC will only report phase 2 and take actions when there is no evidence of human-to-human infection, and declare phase 5 or 6 base on the information unveiled. And from [2], declare PHEIC when there is human-to-human infection cross border.

> A PHEIC is defined in the IHR (2005) as, “an extraordinary event which is determined to constitute a public health risk to other States through the international spread of disease and to potentially require a coordinated international response”. This definition implies a situation that is:

* serious, sudden, unusual or unexpected;

* carries implications for public health beyond the affected State’s national border; and

* may require immediate international action.

[1]: https://www.who.int/influenza/resources/documents/pandemic_p...

[2]: https://www.who.int/news-room/q-a-detail/what-are-the-intern...