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Are Omicron-specific vaccines any better than original jabs? What early tests show

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Are Omicron-specific vaccines any better than original jabs? What early tests show

Early animal studies by scientists around the world found that Omicron’s specific coronavirus vaccine booster was no better at preventing infection than previously available boosters. The Omicron variant of Covid-19 still dominates the world and is by far the most transmitted strain.

Numerous studies have been conducted to determine whether a third dose of the vaccine is sufficient to build immunity to Omicron. Leading vaccine makers Pfizer and Moderna also announced earlier that they had begun clinical trials of their Omicron-specific shots.

David Montefiori, director of the AIDS Vaccine Laboratory, said: “What we’ve seen from these preclinical studies in animal models is that boosting with the mutant vaccine did not compare to boosting with the existing vaccine. It works better,” said researchers and developers at Duke University Medical Center in Durham, North Carolina, in an interview with Nature.

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A report in the journal said that most of the early studies involved small groups of animals, all of which suggested that customized vaccine boosters would not change anything against Omicron. These studies have not been peer-reviewed.

According to the report, a study examined immune responses in rhesus monkeys, a type of monkey, with just eight primates, two doses of Moderna’s original vaccine and a booster shot of the same dose or a specific version of Omicron. The researchers found that monkeys boosted with both vaccines exhibited broad antibody responses to all variants of interest, including Omicron.

However, the study only examined responses up to 4 weeks, meaning it’s unclear how long the vaccine’s efficacy will last.

In another study, scientists tested a “replicating RNA” vaccine in mice. They obtained three doses of the replicating RNA vaccine — two based on the ancestral SARS-CoV-2 strain, followed by a single Omicron-specific booster — made by HDT Bio in Seattle, Washington, the report said.

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US vice president JD Vance, wife Usha and kids visit Jaipur’s iconic Amber Fort | Pics

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US vice president JD Vance, wife Usha and kids visit Jaipur’s iconic Amber Fort | Pics

US Vice President JD Vance, his wife Usha Vance, and their children visited the historical Amer Fort in Jaipur on April 22, 2025. The Vance family received a warm welcome at the Fort, where they were greeted with a traditional Rajasthani dance performance and elegantly decorated elephants. Second Lady Usha Vance, the wife of US vice president JD Vance, carries her daughter Mirabel as they watch a cultural performance at the Amber Fort in Jaipur.

Rajasthan CM Bhajanlal Sharma welcomed the Vance family as they visited the historic Amer Fort in Jaipur. The Vance family will depart for the US early Thursday morning. In related news, JD Vance and wife Usha attended Good Friday service at St. Peter’s Basilica in Vatican City. Vance also visited the Taj Mahal in Agra on April 23, 2025. Vance said that “good progress.

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In other news, Pope Francis’ funeral is set to start on Wednesday, and the J&K tourist hub has been completely shut today. On 4/20, celebrations across the US highlight cannabis culture and calls for legalization had been made towards a trade deal with India after meeting with “tough negotiator” Prime Minister Narendra Modi in New Delhi. The Vance family visited.

On April 22, 2025, US Vice President JD Vance, accompanied by his wife Usha Vance, and their three children, visited Jaipur’s historic Amber Fort. The family received a warm welcome, highlighted by traditional Rajasthani folk performances and a red carpet reception. As they entered the fort’s main courtyard, Jaleb Chowk, they were greeted by two elegantly decorated elephants named Chanda and Mala, raising their trunks in greeting. ​

During their visit, the Vances were joined by Rajasthan Chief Minister Bhajanlal Sharma and Deputy Chief Minister Diya Kumari, who guided them through the fort’s rich history and architectural marvels. The family also enjoyed cultural performances featuring traditional dances such as Kacchi Ghodi, Ghoomar, and Kalbeliya, offering a glimpse into the vibrant.

Usha Vance, dressed in a chic white shirt and patterned skirt, explored the fort alongside her family and dignitaries, embracing the cultural experience culture of Rajasthan This visit was part of Vice President Vance’s four-day official trip to India, aimed at strengthening bilateral relations between the United States and India. The Vance family departed for Washington.

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Bhajanlal Sharma welcomed the Vance family as they visited the historic Amer from Jaipur on April 24, concluding their cultural tour of India Upon their arrival at Amber Fort, the Vance family was greeted with traditional Rajasthani hospitality. Two elegantly decorated elephants, Chanda and Pushpa, adorned with silver ornaments, were stationed at the entrance welcome.

The family was also treated to a cultural performance featuring folk artists dressed in traditional Rajputi and Kalbelia attire, accompanied by musicians playing regional instruments. The vibrant rangolis and the overall festive atmosphere highlighted the rich cultural tapestry of Rajasthan The fort’s impressive courtyards and majestic structures.

Exploring the Fort’s Historical Significance

During their tour of Amber Fort, the Vance family explored various architectural marvels, including the Sheesh Mahal (Mirror Palace), known for its intricate mirror work and stunning design. They were accompanied by Rajasthan Chief Minister Bhajanlal Sharma and Deputy Chief Minister Diya Kumari, who provided insights into the fort’s history and significance.​

Engaging with Local Culture

Throughout their visit, Vice President Vance demonstrated a keen interest in engaging with The Vance family’s visit to Amber Fort was part local culture. He interacted with the folk artists and expressed appreciation for the traditional performances, reflecting a genuine curiosity and respect for India’s diverse cultural heritage.​

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