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Why do some people avoid Covid-19 when those around them have it? Study explains

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Why do some people avoid Covid-19 when those around them have it? Study explains

The Omicron variant of the coronavirus has caused a global surge in Covid-19 infections. The highly mutated strain is believed to bypass existing vaccines and deliver a stronger infection to the host.

However, despite living with someone with Covid-19, some people do not contract the virus. How can this be?

A new study explores this angle, claiming that these people may have been exposed to other coronaviruses in the past, allowing them to make memory immune cells — called T cells. They offer higher protection against Covid-19.

“Cross-reactive immune responses to SARS-CoV-2 were observed in pre-pandemic cohorts and suggested to help protect the host,” said the study, published in the journal Nature, which examined 52 Covid-19 household contacts to capture their immune responses. The idea is to capture the immune response at the earliest time point after exposure to the Sars-CoV-2 virus.

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Viruses from the coronavirus family, while causing different diseases, share some common characteristics, the researchers noted.

Their shared structural similarities enable immune cells that recognize one type of coronavirus to recognize the other, the study said.

Blood of all 52 household contacts was tested on days one to six. The researchers found higher levels of memory T cells in samples from people who tested negative for Covid-19 PCR than those who tested positive.

The researchers said the T cells they measured targeted not only the spike protein part of the virus, but also the nucleocapsid, the core part of the virus that stores its genetic material.

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Meanwhile, earlier this week, an infectious disease expert said that vaccinated and unvaccinated people experience different Omicron symptoms.

Complete News Source : Hindustan Times

Hollywood

Review of the spy thriller “Heart of Stone”: Alia Bhatt shines.

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Review of the spy thriller “Heart of Stone”: Alia Bhatt shines.

In a realm where intrigue and suspense collide, Bollywood’s beloved star Alia Bhatt has once again proven her mettle in the enthralling spy thriller “Heart of Stone.” Directed by the visionary Raj Mehta, this cinematic marvel takes audiences on a roller-coaster ride through espionage, deception, and unrelenting action, with Bhatt’s luminous performance at its epicenter.

A Glimpse into the Plot

“Heart of Stone” delves into the shadowy world of espionage, where nothing is as it seems, and allegiances can crumble in an instant. Bhatt’s character, Maya Verma, is a compelling enigma—a resolute intelligence operative navigating a labyrinth of covert operations and intricate deceptions. As the layers of the narrative peel away, Maya finds herself ensnared in a high-stakes game where trust is elusive and danger lurks in every frame.

The Resplendent Alia Bhatt

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Alia Bhatt’s portrayal of Maya Verma is nothing short of a revelation. Known for her remarkable versatility, Bhatt imbues Maya with a potent mix of strength and vulnerability. With every expression, every gesture, she breathes life into a character that resonates on both emotional and cerebral levels. Bhatt’s artistry reaches its zenith as Maya grapples with inner demons while outwitting her adversaries—a captivating dance that only an actress of her caliber could orchestrate.

Raj Mehta’s Directorial Panache

Raj Mehta, celebrated for his directorial finesse, orchestrates the tapestry of “Heart of Stone” with masterful precision. Seamlessly weaving heart-thumping action sequences and labyrinthine plot twists, Mehta keeps the audience on the edge of their seats. His meticulous attention to detail manifests in every scene, painting a cinematic canvas that’s as thrilling as it is visually arresting.

Supporting Cast: A Tapestry of Brilliance

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The constellation of talent in “Heart of Stone” goes beyond Alia Bhatt. The ensemble cast, featuring Rajkummar Rao, Aditi Rao Hydari, and Vicky Kaushal, contributes to the film’s tapestry with their impeccable performances. The chemistry between the characters adds depth to the narrative, amplifying the emotional resonance and enriching the overall storytelling.

A Symphony of Cinematic Excellence

“Heart of Stone” is an embodiment of cinematic finesse. The film’s production values, from picturesque locations to evocative cinematography, envelop the viewer in a sensory feast. The musical score, composed with an acute understanding of the narrative’s ebbs and flows, elevates the tension and emotions, further ensnaring the audience in the movie’s spellbinding aura.

A Triumph of Genre Fusion

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Critics and audiences alike have bestowed “Heart of Stone” with effusive praise for its seamless fusion of espionage, action, and drama. The film’s ingenious plot twists, coupled with Alia Bhatt’s extraordinary performance, thrust it into the echelons of standout espionage thrillers. It’s a symphony of storytelling that resonates long after the credits roll.

In a year replete with cinematic treasures, “Heart of Stone” stands tall as an embodiment of brilliance. Alia Bhatt’s luminosity shines with unparalleled intensity, solidifying her place as one of Bollywood’s brightest stars. This cinematic tour de force is a must-watch, an experience that unearths the magic created when remarkable talent converges to craft an indelible cinematic journey.

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