Fauci Issues a Warning; Thailand Has Record Cases: Virus Update Bloomberg 1 hr ago (Bloomberg) -- The top U.S. infectious disease expert, Anthony Fauci, warned that the nation is moving in the “wrong direction” in combating a new wave of the pandemic as vaccinations slow, and said a booster shot may be needed especially for the most vulnerable. Countries including Thailand, Vietnam, South Korea and Algeria are imposing curfews in cities to battle a surge in cases. Protests against Covid measures took place in a number of nations from Australia to France to Tunisia, where the president fired the prime minister Sunday after violent demonstrations.