Gold prices were little changed on Tuesday, as concerns over spiking U.S. coronavirus cases offset pressure from vaccine optimism brought about by a positive vaccine trial data.FUNDAMENTALS* Spot gold was unchanged at $1,887.99 per ounce by 0050 GMT, while U.S. gold futures were up 0.1% at $1,888.70.Close * Bullion dropped as much as 1.3% on Monday after drugmaker Moderna said its experimental vaccine was 94.5% effective in preventing COVID-19 based on interim data from a late-stage trial. COVID-19 Vaccine Frequently Asked Questions View more How does a vaccine work? A vaccine works by mimicking a natural infection. A vaccine not only induces immune response to protect people from any future COVID-19 infection, but also helps quickly build herd immunity to put an end to the pandemic. Herd immunity occurs when a sufficient percentage of a population becomes immune to a disease, making the spread of disease from person to person unlikely. The good news is that SARS-CoV-2 virus has been fairly stable, which increases the viability of a vaccine. How many types of vaccines are there? There are broadly four types of vaccine — one, a vaccine based on the whole virus (this could be either inactivated, or an attenuated… Read full this story
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