Johnson E M, Baron L S
J Bacteriol. 1969 Jul;99(1):358-9. doi: 10.1128/jb.99.1.358-359.1969.
The Vi antigen was expressed in a strain of Escherichia coli after transfer of the viaB locus from a Salmonella typhosa Hfr donor.
在将伤寒沙门氏菌Hfr供体的viaB基因座转移后,大肠杆菌的一个菌株中表达了Vi抗原。