Strains of Corona virus
The corona virus at the root of COVID-19 is the newest known member of this family. At their core ,corona virus contain a genetic blue print called RNA , similar to DNA .
The single stranded RNA acts as a molecular message that enables production of protein needed for other elements of the virus.
Encapsulating the RNA genome is the viral envelope which protects the virus when it is outside of a host cell . This outer envelope is made from a layer of lipid ,a waxy barrier containing fat molecules.
The bulbous projections seen on the outside of the corona virus are spike proteins (red orange). This fringe of proteins gives the virus its crown like appearance under the microscope from which the latin name corona derived.
Multiple variants of the virus that causes COVID-19 are circulating globally. In collaboration with SARS -COV-2 Interagency Group (SIG) for SARS - COV -2 variants being monitored:
There are Currently 5 variant of concern in the United States.
B.1.1.7 - This variant was first identify in the US in December 2020. It was initially detected in the UK.
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B.1.351 - This Variant was first identified in the US at the end of January 2021. It was initially detected in South Africa in December 2020.
P. 1 - This Variant was first detected in the US in January 2021.
B. 1.427 and B .1.429 - These two variants were first identified in California in January 2021 .
The coronavirus pandemic has reached almost every country in the world.
Its spread has left national economy and businesses counting the costs, as governments struggle with new lockdown measures to tackle the spread of the virus.
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