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Friday, December 19, 2025
TopicDelta variant

Topic: Delta variant

Delta variant detected in 80% samples sent for genome sequencing in Delhi in last 3 months

The official data also showed that the Delta variant has been found in 1,689 and the Alpha variant has been detected in 947 of the 5,752 samples from Delhi processed so far.

Global Covid caseload could exceed 200 million by next week, WHO says

According to Covid weekly epidemiological update by WHO, Delta variant has been found in 135 countries, Beta variant in 132 and Gamma variant in 81 countries.

Covid shots targeting Delta variant may become necessary, UK study says

The study found that the effectiveness of vaccines at stopping infection fell to 49%, down from 64% in a month earlier.

Raging Delta variant poses challenge for China’s strategy to tackle Covid

With most Covid vaccines proving less effective against Delta variant, state-owned Sinopharm said its inactivated Covid shot, given widely in China, is 68% effective.

Covaxin effective against Delta, other variants despite reduced antibody activity: ICMR study

Delta is believed to be one of the factors that catalysed India's second Covid wave. Further mutations in Delta have led to other variants, leading to concerns about vaccine efficacy.

Delta variant as contagious as chickenpox, can cause more severe illness: US CDC report

The document from the CDC outlines unpublished data that shows fully vaccinated people might spread the Delta variant, first found in India, at the same rate as unvaccinated people.

How Delta’s spread is testing even aggressive ‘Covid zero’ defences

The variant is exposing the limitations of the strategy of virus elimination. Countries are no longer targeting nil cases but transitioning toward a strategy of living with the virus.

US CDC tells vaccinated people to mask up again as Delta cases surge

US CDC director Rochelle Walensky said they had gathered data suggesting that some vaccinated people infected with the Delta variant can transmit the virus to others.

Delta variant in specimens sequenced over last 4 weeks exceeded 75% in many countries: WHO

According to data, the prevalence of Delta exceeded 75% in India as well. The other countries were Australia, Bangladesh, China, Indonesia, Israel, UK, Russia, Singapore among others.

Assam doctor infected with Alpha & Delta variants of Covid simultaneously, first in India

The doctor, despite being fully vaccinated, got infected with both Alpha and Delta variants of SARS-CoV-2, and the double infection was detected in the patient in May.

On Camera

What the key political events of 2025 tell us about Narendra Modi and India’s future

From Operation Sindoor to India-US tensions to the EC controversies, a clear understanding has emerged about where the politics is headed now.

Antitrust watchdog Competition Commission to probe IndiGo flight disruptions

While the commission didn’t mention provisions under which IndiGo's market domination would be examined, Competition Act 2002 prohibits abuse of dominant position by any enterprise.

Israel has ‘realised who its real friend is’, eyes defence expansion in India amid arms curbs by others

It is argued that India-Israel ties are moving from buyer–seller dynamic to one focused on joint development & manufacturing partnership, a shift 'more durable' than traditional arms sales.

India’s top airline just handed sarkar the keys. That’s IndiGo’s real ‘crime’

Don’t blame misfortune. This is colossal incompetence and insensitivity. So bad, heads would have rolled even in the old PSU-era Indian Airlines and Air India.