“British Teen Found Alive After Days Lost in Thai Jungle”

A British teenager who went missing during a jungle trek in Thailand was located alive after enduring harsh conditions alone. Search teams coordinated across multiple jurisdictions and utilized drones and local trackers to narrow down the search area. The teen was reportedly weak and dehydrated but conscious upon rescue, and was airlifted to medical care. Authorities believe his survival was aided by prior wilderness training and rationing what little food and water he had. The case has drawn international relief and praise for the swift cross-agency rescue effort.

How long was he missing?  Does "days" mean less than a week?  

Glad he's ok.

Being lost anywhere without enough water is bad, in a tropical climate it's a survival situation.