President Donald Trump extended the United States’ recommendations on social distancing on Sunday as the death toll due to the coronavirus outbreak increased.The US currently has more cases of coronavirus than any other country in the world with more than 140,000 confirmed as testing has ramped up in the last few weeks. More than 2,400 people have died in the country of 330 million.The federal guidelines encourage Americans to work or school at home if possible and to practice proper respiratory hygiene until April 30.Meanwhile, more than half of US states have issued orders for Americans to stay at home.Many Americans have bemoaned confusing messaging from the federal government on the outbreak.Trump said just last week that he hoped the US would reopen by Easter on April 12. He said on Sunday that he thought the US would be on the other side of the epidemic curve by June 1, at which point he anticipates "great things".The extended guidelines came as the country’s top expert on infectious diseases Dr Anthony Fauci, who has quickly become a household name in America, told CNN that the virus could potentially kill between 100,000 and 200,000 people in the United States.He added a significant caveat about how it's difficult to model the future effects of a virus:“We're going to have millions of cases, but I just don't think that we really need to make a projection when it's such a moving target that you could so easily be wrong and mislead people," Dr Fauci told CNN’s State of the Union as he explained that modelling often looked at the worst case scenarios.Ultimately, Fauci said, the virus will make its own "timeline".The US is ramping up testing after a slow start and recently passed a stimulus package of $2.2 trillion to help the economy and healthcare system during the outbreak.