About the Authors

Vidya Devi Negi

Affiliation Centre for Infectious Disease Research and Biosafety Laboratories, Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India

Arvindhan G. Nagarajan

Affiliation Centre for Infectious Disease Research and Biosafety Laboratories, Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India

Dipshikha Chakravortty

dipa@mcbl.iisc.ernet.in

Affiliation Centre for Infectious Disease Research and Biosafety Laboratories, Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India

Competing Interests

Patent No. (DV-STM-07#) 1889/CHE/2007. Patent applied for Salmonella typhimurium vaccine. The authors confirm that this does not alter their adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: VDN AGN DC. Performed the experiments: VDN DC. Analyzed the data: VDN AGN DC. Contributed reagents/materials/analysis tools: DC. Wrote the paper: VDN AGN DC.