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Almost complete skeleton of the hybodontiform shark Asteracanthus recovered from the Late Jurassic Solenhofen limestones in Bavaria, Germany, including close-up view pictures of its dorsal fin spines and tentative life reconstruction (Credit: Sebastian Stumpf; life reconstruction © Fabrizio De Rossi). gold 12s CDC UPDATES CORONAVIRUS FACE MASK GUIDANCE, ENDORSES 'DOUBLE MASKING'"Although not preferred, healthcare facilities could consider waiving quarantine for vaccinated patients and residents as a strategy to mitigate critical issues when other options are unsuccessful or unavailable," the agency stated. gold 12s The official added, though, that the United States is in a position where "if we can get through the next six to eight months, we will be able to surge forward and continue to play a strong role in the Asia Pacific and also find areas that are consequential and important that we can work with China. gold 12s Successive waves of hospitalization and death in Western countries last year show the disease can cause significant illness even when relatively small numbers of people are exposed, said Martin Hibberd, professor of emerging infectious disease at the London School of Hygiene and Tropical Medicine. gold 12s