Table 1.

Details of primers used in this study

Name of the primer	Sequence (5ʹ–3ʹ)	Amplicon size	Reference
typh F	TTGTTCACTTTTTACCCCTGAA	401 bp	11
typh R	CCCTGACAGCCGTTAGATATT
invA F	GTGAAATTATCGCCACGTTCGGGCAA	284 bp	10
invA R	TCATCGCACCGTCAAAGGAACC