Experts say action needed to keep COVID-19 4th wave under control

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Health officials warn of 4th COVID-19 wave as cases increase | GMA

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COVID-19 booster: Possible 4th dose

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Coronavirus: US braces for a possible 4th wave of COVID-19 as cases increase

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9 states hit record numbers of new coronavirus infections over July 4th l GMA

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COVID peak explained: Why can't Germany break the 4th Coronavirus wave? | DW Analysis

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Latest news on 4 viruses on the rise across the U.S.

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Canada facing start of Delta-driven 4th COVID-19 wave, top doctors warn | FULL

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COVID 4th Wave: China Covid data misleading: WHO warns against next COVID explosion

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Coronavirus India | Is The 4th Wave Nearing Soon? | The Urban Debate | Mirror Now

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How different Canadian provinces are responding to threat of 4th COVID-19 wave

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Global National: July 30, 2021: COVID-19 modelling raises fears of 4th wave

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Is Washington at a COVID-19 plateau, or amid a 4th wave? Health officials clarify

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COVID-19 Cases Surge - Triggers Fear of a 4th Wave

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Coronavirus: Could 4th of July rallies fuel further outbreaks in the US?

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JUST IN: New York Breaks Covid Case Record 4th Day In A Row, Up 4x From Last Week

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4th of July: Independence Day celebrations take place despite COVID-19 danger

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4 HMPV Virus Cases Detected In India So Far: Government Says No Cause For Alarm | India Today

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