Effort: In an effort to get people vaccinated against Covid-19, Kenya’s health workers go door to door for people who live far from health facilities. The more benign Omnicron variant has also made people complacent. Photo: Briaqn Ongoro/AFP
                                    
                                    Low vaccination levels and high number of health-compromised populations make the continent a ‘breeding ground for variants’ that pose a global risk
 		
			
				
	
		
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