CKR-L3, a deletion version CCR6-isoform shows coreceptor-activity for limited human and simian immunodeficiency viruses

Table 1 Replication efficiency of laboratory-adapted strains and primary isolates via different coreceptors in NP-2/CD4/coreceptor cell line system

^aViral antigen positive cells were examined by IFA.
++++,70-90% of cells became antigen-positive within one week after infection; +++,70-90% of cells became antigen-positive within two to four weeks of infection; ++,70-90% of cells became antigen-positive within five to eight weeks of infection; +,1-2% of cells become infected initially, however, did not progress with time untill eight weeks of infection and -,<0.1% of cells became antigen-positive within seven to eight weeks of infection.

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