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Wednesday, September 24, 2025
TopicImmunity

Topic: immunity

Why an efficient vaccine is not the same thing as a safe vaccine

In ‘Covid-19: Separating fact from fiction’, Anirban Mahapatra chronicles the scientific progress made in understanding how Covid infects us & how we fight back.

Not all vaccines prevent infections. But you must still take the shot

In an ideal world, all vaccines would induce ‘sterilising immunity’ — completely stop the virus in its tracks.

US weighs immunity request for Saudi crown prince MBS in alleged assassination plot

The case accuses MBS of deploying operatives in the US to track down Saad Aljabri, a former high-level official, and then dispatching a team to murder him.

Vaccines not the only solution to Covid, past viral infections are key too

Three doctors who sat at lunch with a Covid-infected colleague in a Delhi hospital didn’t get infected. Once we know why, we’ll also know who to vaccinate.

The importance of Zinc in fight against Covid and what studies on the nutrient say

Association of zinc deficiency with severe Covid outcomes has probably labelled zinc as the second most important nutrient after Vitamin D that can help fight the virus.

Let your children play in the green outdoors for just a month, watch immunity grow

A new study suggests that city playgrounds with forest undergrowth, lawn turf and planter boxes could help improve the regulation of children’s immune systems.

Why falling Covid antibody levels doesn’t mean immunity is waning

The adaptive immune system first produces many antibodies to clear a pathogen, and then forms a memory of it to tackle reinfection.

AstraZeneca-Oxford Covid vaccine produces strong immune response in older adults

The Astra-Oxford vaccine candidate is one of several front-runners in the race for protection against the virus.

There are over 175 coronavirus vaccines in the race. But what happens if we don’t get one

A vaccine could provide a way to end the pandemic, but with no prospect of natural herd immunity we could well be facing the threat of Covid-19 for a long time to come.

Maybe she’s born with it, maybe she’s a honeybee—How insects survive without antibodies

In ‘Every Creature Has A Story’, Janaki Lenin writes about how hard-working bees avoid disease while living in densely-populated hives.

On Camera

UPSC Civil Services Exam has been reduced to a memory test. That’s not how you select officers

India’s civil services were once called the ‘steel frame’. But steel is forged in fire, not moulded in a coaching class. While dilution has made the exam easier, it has also made it harder to find the game-changers we need.

Market regulator SEBI clears Adani Group of impropriety alleged by Hindenburg Research

SEBI probe concluded that purported loans and fund transfers were paid back in full and did not amount to deceptive market practices or unreported related party transactions.

China navy achieves breakthrough with new fighter jet launch system. What are electromagnetic catapults

China’s most advanced aircraft carrier—Fujian—uses electromagnetic catapults, a core component of future aircraft carriers.

India doesn’t give walkovers to Pakistan in war. Here’s why it shouldn’t do it in cricket either

Many really smart people now share the position that playing cricket with Pakistan is politically, strategically and morally wrong. It is just a poor appreciation of competitive sport.