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How do vaccines work in our body? 

How does a vaccine work? What are the elements of our body that are implemented during a vaccination? When a pathogen – a virus or bacterium – is introduced into the body, it multiplies and attacks cells. This is known as an infection.

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Video: Vijay takes oath as Tamil Nadu CM amid loud cheers and chants

TVK leader C Joseph Vijay on Sunday took oath as the Chief Minister of Tamil Nadu amid a sea of supporters, his friends and family, and several political leaders. Eight other TVK leaders were sworn in besides him, as ministers in the new government. Congress leader Rahul Gandhi also attended the ceremony. The TVK managed to secure the Governor's nod to form the government after the Congress, the CPI, the CPI(M), the VCK, and IUML extended their support to the Vijay-led party for a colaition government.