How some people can use their left hand to perform all major tasks of the day, including writing, has always intrigued the right-handed lot. This inquisitiveness has also made many scientists scratch their heads, as there is no proven theory of how some people acquire left-handedness, and whether their brain wiring is somewhat different than their rivals, right-handed people.

What makes some people left-handed? A study tries to unravel the reasons

In a new study, scientists have suggested that an antiviral drug which has been used for treating patients with COVID-19 may have led to mutations in the virus and created its new variants.

Consumption of anti-Covid drugs may have led to dangerous mutations: study

According to the WHO, early research on the Omicron variation of COVID-19 shows that there may be an increased risk of reinfection with this variant, meaning that those who have previously been infected with COVID-19 may be more readily reinfected, although data is limited.

Those who had COVID-19 may be reinfected more easily with Omicron: WHO

While the world is already struggling to get rid of the existing Delta variant of Covid, reports suggest that another variant has emerged and it could carry an “extremely high number” of mutations which could lead to further waves of the disease.

As world continues to battle the Delta variant, a new variant 'worse than delta' emerges

There was a slight dip in the daily caseload of coronavirus but daily deaths set a new record as 1,761 people died on Monday. It was the highest 24-hour spike since last year.

Mutations continue to drive India's Covid second wave  

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