August 19 , 2022
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	- Britain has become the first country to authorise a Covid-19 vaccine that targets the Omicron variant. 
 
	- The UK medicine regulator approved the 'bivalent' vaccine made by Moderna as a booster for adults.
 
	- This vaccine triggered "a strong immune response" against both Omicron (BA.1) and the original 2020 virus.
 
	- It also generates a good immune response against the currently dominant Omicron sub-variants BA.4 and BA.5.
 

                                 
                            
                                
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