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Sunday, February 22, 2026
TopicCovid reinfection

Topic: Covid reinfection

New human challenge trial in UK to study immune response that can prevent Covid reinfection

The human challenge trial by Oxford University researchers will re-infect participants with Covid-19 and will study their immune response before and after the exposure.

Why you should not freak out about Covid reinfection stories

The fear is that Covid reinfection cases could be widespread, but scientists say it’s normal to see extreme variability in the human reaction to any virus.

On Camera

Youth Congress, your foolish protest helped the Modi govt climb out of the AI summit hole

In tactical terms, the shirtless protest was worse than a self-goal. Suddenly, the fiascos of the AI Summit were forgotten, and the Youth Congress’s disruption became the issue.

In the West, there’s anxiety. In India, optimism—Rishi Sunak says India poised to be leader in AI

On Wednesday, the former UK Prime Minister Rishi Sunak was speaking in New Delhi at a Carnegie & Observer Research Foundation event on AI.

MoD, IAF agree on some exemptions to HAL for Tejas Mk1A, but no compromise on ‘must-have’ capabilities

IAF is fine with accepting the aircraft with 'must-haves', even if some other steps remain pending, which may take at least another year, it is learnt.

No country is ever fully sovereign. Cold War era taught India its real meaning

India’s fraught neighbourhood places multiple constraints on its strategic choices. It leaves no time to take a deep breath, lean back and reset.