内容摘要：according to a paper by Reserve Bank of India (RBI) economists.

according to a paper by Reserve Bank of India (RBI) economists.

swam 186 miles (300km) across the Caspian Sea and fought off ice lumps and polar bears through the Bering Strait.000 miles (3219km) left to walk before he arrives at his home city of Hull.

He said reuniting with his family would involve getting to know each other again.but he was mentally prepared for the tough encounters.More on this storyRound-the-world walker swims across Caspian SeaAround the world walker set to swim Caspian SeaAround the world walk delayed by Ukraine warRelated internet linksGoliath Expedition HullOpen water swimmingTravelWalkingHikingRelatedNew home for one of port's last deep-sea trawlers13 hrs agoHull East YorkshireFree training to encourage more cycling in Hull20 hrs agoHull East Yorkshire'Having breast cancer makes me feel an imposter'23 hrs agoHull East YorkshireMore from the BBC14 hrs agoWoman fell to death while scrambling up mountainMaria Eftimova's death after she fell from Tryfan was accidental.

15 hrs agoSussex19 hrs agoHeathrow expansion 'essential' after busiest May More than 7.has said returning home will be a very strange place to be after being away for some 27 years.

Karl BushbyKarl Bushby set off from Hull in 1998 and has been on the road ever sinceFollowing his 31-day swim across the Caspian Sea last year.

it's a very strange place to be in where suddenly your purpose for living will have a hard stop.I still see some patients come to me with reports of sputum (phlegm) smear microscopy for TB.

sees two TB-related deaths every three minutes.more than half his weekly income.

home to 27% of the world's tuberculosis cases.changing treatment centres involves navigating complex bureaucracy.