Washington (AFP) - Top US scientist Anthony Fauci on Saturday blasted commentators who sound an anti-vaccination theme, saying America might still be battling smallpox and polio if today's kind of misinformation existed back then. The comments from the country's leading infectious disease expert reflected mounting frustration over the sharp slowdown in the Covid-19 vaccination rate in the United States, even as the disease has been surging in states with low rates. It also came days after President Joe Biden expressed his own visible frustration, saying social media that carry widely heard mis...