Flight data

[trucnguyen83]

Hi, what is the source of the flight data and what is the unit of it? Is it how many passenger per day? Thank you!

[reneniehus]

Hi, yes the unit is passengers per day. The source is this one: ​Shengjie Lai, Isaac Bogoch, Nick Ruktanonchai, Alexander Watts, Yu Li, Jianzing Yu, XinLv, Weizhong Yang, Hongjie Yu, Kamran Khan, Zhongjie Li, Andrew J Tatem. Assessing spread risk of Wuhan novel coronavirus within and beyond China, January-April 2020: a travel network-based modellingstudy.m​edRxiv​(2020)doi:​10.1101/2020.02.04.20020479​. From: trucnguyen83 <[email protected]> Reply-To: c2-d2/detect_prob_corona2019 <[email protected]> Date: Tuesday, 18 February 2020 at 03:33 To: c2-d2/detect_prob_corona2019 <[email protected]> Cc: Subscribed <[email protected]> Subject: [c2-d2/detect_prob_corona2019] Flight data (#1) Hi, what is the source of the flight data and what is the unit of it? Is it how many passenger per day? Thank you! — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[trucnguyen83]

Hi,

Thanks for the source. I just tried to search the source for the data. It's in Table S8 (Supplementary table). The title of the table is "Top 30 ranked destiantions outside of mainland China receiving airline travellers from Wuhan in mainland China during the two weeks before the city’s lockdown." So your unit should be number of passenger per 2 weeks (not daily).

Other paragraphs inside the reference also mentioned:
"We estimated that 59,912 air passengers, of which 834 (95% UI: 478 -
1349) had 2019-nCoV infection, travelled from Wuhan to 382 cities outside of
mainland China during the two weeks prior to Wuhan’s lockdown. "
"During the two weeks before Wuhan’s lockdown, there were an estimated total 59,912 airline
travellers from Wuhan that may have needed to be kept in quarantine at the
382 destinations outside of mainland China (Supplementary Table S8). "
This 59,912 matched the sum of the table.

So do you need to re-run your model with x(i)/14 ? because your paper mentioned it's daily travel value.

[violeetaa]

You are right. Thank you for this!