Bolt, who will run the 200 meters at the Bislett Games tomorrow, said he has his "eye on the prize" of the worlds and is not overly concerned after coming off a rare defeat in the 100 meters last Thursday.
Bolt lost by one-hundredth of a second to American sprinter Justin Gatlin in Rome, the Jamaican's first significant international loss since the false-start disqualification at the worlds in South Korea in 2011.
"(The loss to Gatlin) doesn't say much. All I'm concerned about really, is the championship. Running the runs, getting into shape, figuring out what I need to do to get to the championship."
Bolt is the world record holder over 100 and 200 and any slight dip in form from the athlete widely considered to be the fastest ever is going to attract attention.
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His dominance is also being questioned as rivals Gatlin, Tyson Gay of the U.S. And Jamaican teammate Yohan Blake begin to look like they could threaten him this season.
"Never try and single out one person to see who's the strongest, because in track and field people get injured all the time," Bolt said.
"If I focus on one person and they get injured, then what? Then you have to change your focus and you may not be ready for that other person. So for me, I just work hard and try to be at my best when those seven persons are lined up against me.