Genotypic characteristics of hepatitis B virus isolated from 60 Tibet patients
	    		
		   		
	    	
    	
    	
   		
        
        	
        		- VernacularTitle:西藏地区60例慢性乙型肝炎患者病毒基因分型及分布特点
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Xuehong GONG
			        		
			        		;
		        		
		        		
		        		
			        		Jinlei WANG
			        		
			        		;
		        		
		        		
		        		
			        		Chengyan MENG
			        		
			        		;
		        		
		        		
		        		
			        		Jialin JIN
			        		
			        		;
		        		
		        		
		        		
			        		Wenhong ZHANG
			        		
			        		
		        		
		        		
		        		
		        		
		        		
			        		
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Journal Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Hepatitis B virus;
			        		
			        		
			        		
				        		Hepatitis B,chronic;
			        		
			        		
			        		
				        		Genotype;
			        		
			        		
			        		
				        		Tibet
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Chinese Journal of Infectious Diseases
	            		
	            		 2008;26(5):309-312
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	Objective To investigate the genotypic characteristics of hepatitis B virus(HBV) in Tibet.Methods Serum samples from 60 cases of hepatitis B in Tibet Autonomous Region were collected from January 2000 to March 2004.HBV genotypes were analyzed by sequencing S region and precore/core region.Results HBV isolated from 60 cases were all found to be D genotype by S region sequencing.Dc mixture was found in 59 cases,showing the recombination between their precore/core gene and genotype B virus at 1804-2299 nucleotide.The other one case showed Dbc mixture genotype,showing recombination between its precore/core gene and genotype B and C genes.Conclusions All Tibet cases in this study show mixture genotype D with recombination with genotvpe C or both genotype B and C at precore/core region.No case of pure genotype D is found.