Why is it taking so long for the government to regulate them, and what are the consequences of delay?
The new analysis from a prominent water campaigner emerged after secret court documents were leaked.
Fampridine boosts nerve signals to make it easier to walk, with up to 5,000 eligible.
Follow live text commentary, score updates and match stats from Columbus Crew vs New York City in the Major League Soccer
Follow live text commentary, score updates and match stats from Cincinnati vs Vancouver Whitecaps in the Major League Soccer
Follow live text commentary, score updates and match stats from Inter Miami vs Chicago Fire in the Major League Soccer
Follow live text commentary, score updates and match stats from New England vs Toronto in the Major League Soccer
Follow live text commentary, score updates and match stats from Philadelphia Union vs New York RB in the Major League Soccer
Herders and experts tell the BBC how Africa's camels are suffering because of extreme heat.
