TABLE 1.

Phage typing comparisons between 53 archived LT2 strains and the wild-type sequenced strain 2004 and two other nonarchived strains of serovar Typhimurium^a

Strain	Allele	Phage type
		Felix and Callow/Lilleengen	Anderson DT
2004	Sequenced strain	1b var. 2/2	4
1596	hisD2555	1b var. 2/2	4
1600	hisB143	1b var. 2/2	4
1601	hisF144	1b var. 2/2	4
1639	hisD142	1b var. 2/2	4
1648	thyA1566	1b var. 2/2	4
1670	hisD2550	1b var. 2/2	4
1671	hisD2550	1b var. 2/2	4
1685	thyA269	1b var. 2/2	4
1693	thyA274	1b var. 2/2	4
1702	thyA315	1b var. 2/2	4
1703	thyA314	1b var. 2/2	4
1737	thyA324	1b var. 2/2	4
1738	thyA324	1b var. 2/2	4
1927	aro-20	1b var. 2/2	4
2011	thyA314	1b var. 2/2	4
2014	thyA324	1b var. 2/2	4
1609	purD35	1b/2	4
1613	thyA162	1b/2	4
1614	hisD4384	1b/2	4
1615	hisD2543	1b/2	4
1626	thyA173	1b/2	4
1632	hisD2555	1b/2	4
1669	hisD2550	1b/2	4
1674	hisD2550	1b/2	4
1681	thyA270	1b/2	4
1688	thyA272	1b/2	4
1706	thyA316	1b/2	4
1747	hisD2550	1b/2	4
1748	hisD2550	1b/2	4
2013	thyA315	1b/2	4
1594	hisD2555	1b/2	4
1598	hisD141	1b var. 2/2	4 (+14)b
1684	thyA273	1b/2	4 (+14)b
1700	thyA314	1b/2	4 (+14)b
1635	hisD142	2b/NCd	RDNC (1)c
1617	hisD4385	2b/NC	RDNC (1)
1657	hisD2122	2b/NC	RDNC (1)
1922	thyA158	2b/NC	RDNC (1)
1636	hisD142	2b/NC	RDNC (1)
2000	Nonarchivale	2b/NC	RDNC (2)
2007	Nonarchivalf	1a/9	RDNC (3)
1939	thyA2422	1b/2	RDNC (4)
1656	thyA68	1/1	1
1666	hisD2550	1/1	1
1652	hisD2526	UT/NC	193
1672	hisD2550	35/NC	29
1692	thyA275	Serologically rough 01 +	UT
1695	thyA272	Serologically rough 01 +	UT
1704	thyA316	Serologically rough 01 +	UT
1935	thyA2431	Serologically rough 01 +	UT
1619	aro-63	Serologically rough 01 Φ	UT
1687	thyA273	Serologically rough 01 Φ	UT
1701	thyA314	Serologically rough 01 Φ	UT
1717	thyA320	Serologically rough 01 Φ	UT
1745	thyA329	Serologically rough 01 Φ	UT

^aA total of 11 phage types are represented among the archived strains.

^bStrain additionally reacts with phage A14.

^cRDNC, reaction does not conform to a known Anderson phage type but falls in the group given in parentheses.

^dNC, noncharacteristic of a Lilleengen phage type.

^eClinical isolate of serovar Typhimurium.

^fNon-LT2 strain with Gifsy-1 mutant.