Some forecasts on vaccine availability have grown less optimistic. Good Judgment, a company whose forecasters make predictions based on publicly available evidence, put the chances that a vaccine will be widely distributed in the United States by the end of March at 54 per cent. That is up from an estimate of less than 20 per cent in early July, but down from above 70 per cent earlier this month.
Even if a vaccine is approved, questions persist about how easily and quickly it can be distributed. President Trump and his health officials have issued conflicting predictions about when the general public could have access."The potential for market disappointment will likely come from the realisation that manufacturing and broad distribution will take longer," said Art Hogan, chief market strategist at National Securities.