Mississippi and Louisiana have some of the worst vaccine rates and highest hospitalizations in U.S.

Medical employees with Delta Health Center wait to vaccinate individuals at a pop-up Covid-19 vaccination clinic in this rural Delta

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Local officials across U.S. are starting to reimpose Covid mask rules as delta variant takes hold

People carrying face protecting masks stroll on Hollywood Blvd through the outbreak of the coronavirus illness (COVID-19), in Los Angeles,

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Pfizer to press its case to U.S. officials Monday on need for Covid vaccine booster shots

The metropolis of Long Beach’s Department of Health & Human Services holds a night COVID-19 vaccination clinic Long Beach City

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Most fully vaccinated people who get Covid delta infections are asymptomatic, WHO says

World Health Organization Director-General Tedros Adhanom Ghebreyesus R speaks at a day by day briefing in Geneva, Switzerland. Chen Junxia

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