


اولین گونه جهش یافته کوید از نوع آفریقایی و برزیلی در این کلان شهر شناسی شد
کالیفرنیا _ لسآنجلس
پنجشنبه هشتم آپریل


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Two coronavirus variants thought to be more transmissible or resistant to vaccines than their predecessors have been found in Los Angeles County for the first time, a discovery health officials said should reinforce the importance of taking steps to thwart transmission of the virus.
Credit to :Alireza Hekmatshoar
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