 Global shares were mostly higher after China reported strong manufacturing data, extending an overnight rally on Wall Street.
Indexes in Europe all advanced in early Tuesday trading. U.S. futures are also rising. Shares in Japan and Australia fell while South Korean and Chinese benchmarks rose.
Optimism is budding that the worst of the selling may be almost over, but markets around the world remain volatile.
Johnson & Johnson said it expects to begin human clinical studies by September on a vaccine candidate for COVID-19, the disease caused by the new coronavirus.
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