By LAURAN NEERGAARD
AP Medical Writer
WASHINGTON (AP) Dozens of research groups around the world are racing to create a vaccine as coronavirus cases continue to grow. Early work in labs and in animals looks promising, and researchers hope to start first-step safety tests in young, healthy volunteers soon. Scientists are pursuing different types of vaccines for a better chance that one, or more, eventually might work. Some even are aiming for shots that might guard people’s health a month or two at a time while longer-lasting protection is developed. Still, experts warn it likely will be more than a year before vaccines are ready for widespread use.
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