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San Diego, Apr 15: Several people lost their sense of smell or taste weeks ago globally and are still waiting for it to come back and now, researchers have identified an association between sensory loss and novel coronavirus 2019 (COVID-19) infection, indicating that loss of smell and taste may be considered as early symptoms of the deadly disease.

Interestingly, the study also found that persons who reported experiencing a sore throat more often tested negative for COVID-19.

The team from University of California-San Diego found high prevalence and unique presentation of certain sensory impairments in patients positive with COVID-19.

Of those who reported a loss of smell and taste, the loss was typically profound, not mild.

"Based on our study, if you have smell and taste loss, you are more than 10 times more likely to have COVID-19 infection than other causes of infection. The most common first sign of a COVID-19 infection remains fever, but fatigue and loss of smell and taste follow as other very common initial symptoms," explained study researcher Carol Yan from UC San Diego.

"We know COVID-19 is an extremely contagious virus. This study supports the need to be aware of smell and taste loss as early signs of COVID-19," Yan added.

For the findings, published in the journal International Forum of Allergy and Rhinology, the research team surveyed 1,480 patients with flu-like symptoms and concerns regarding potential COVID-19 infection who underwent testing at UC San Diego Health from March 3 through March 29, 2020.

Within that total, 102 patients tested positive for the virus and 1,378 tested negatives. The study included responses from 59 COVID-19-positive patients and 203 COVID-19-negative patients.

Encouragingly, the rate of recovery of smell and taste was high and occurred usually within two to four weeks of infection.

"Our study not only showed that the high incidence of smell and taste is specific to COVID-19 infection but we fortunately also found that for the majority of people sensory recovery was generally rapid," said Yan.

"Among the COVID-19 patients with smell loss, more than 70 per cent had reported improvement of smell at the time of the survey and of those who hadn't reported improvement, many had only been diagnosed recently," she added.

Sensory return typically matched the timing of disease recovery.

In an effort to decrease the risk of virus transmission, UC San Diego Health now includes loss of smell and taste as a screening requirement for visitors and staff, as well as a marker for testing patients who may be positive for the virus.

"It is our hope that with these findings other institutions will follow suit and not only list smell and taste loss as a symptom of COVID-19, but use it as a screening measure for the virus across the world," Yan said.

Ahmedabad, Feb 24: US President Donald Trump arrived in Ahmedabad on Monday for the first leg of his India trip.

The Air Force One plane carrying Trump and his wife Melania landed at the Sardar Vallabhbhai Patel international airport here at 11.37 am, officials said.

It was scheduled to land at 11.40 am.

Prime Minister Narendra Modi, who reached Ahmedabad over an hour before Trump did, was present at the airport to welcome the US president at the airport.

In Ahmedabad, Trump will visit Mahatma Gandhi's Sabarmati Ashram, take part in a roadshow with Modi and jointly address over one lakh people at a cricket stadium, before heading for Agra to see the iconic Taj Mahal with Melania.

Trump, who is also accompanied by daughter Ivanka, son-in-law Jared Kushner and top brass of his administration, will get a taste of India's cultural melange during his high- optics Gujarat itinerary, after the bonhomie between the two leaders at the 'Howdy, Modi!' event in Houston last year.

The US president and Modi will participate in a roadshow from the airport to Sabarmti Ashram and from there to the newly-built Motera cricket stadium, where over a lakh people are expected to be present for the 'Namaste Trump' event.

Dance groups and singers from different parts of the country will be performing on stages that are dotting the 22- km route of the 'India roadshow' in the city.

Huge billboards of the two leaders and replicas of historic places in Gujarat have also been placed along the roads where people will greet the two leaders.

Over 10,000 police personnel, besides officials of the United States Secret Service, and personnel of the National Security Guards (NSG) and the Special Protection Group (SPG) have been deployed for the high profile visit.

The seventh US president to visit India, Trump on Sunday retweeted a video in which his face was superimposed on the hit Indian movie-character Bahubali, showing him as a great saviour.

Modi will accompany Trump to the Sabarmati Ashram, which was home to Mahatma Gandhi from 1917-1930 during India's freedom struggle.

Several world leaders including Chinese President Xi Jinping and Japanese Prime Minister Shinzo Abe have visited Sabarmati Ashram in recent years.

Ashram secretary Amrut Modi said Trump will spend 15 minutes at the place.

"Trump will visit the 'Hriday Kunj'. If he wishes, he will spin a charkha (spinning wheel). We will also gift him a coffee-table book, and a book containing 150 quotations of Gandhi," the Ashram official said.

Hriday Kunj is a room on the Ashram premises where Mahatma Gandhi and his wife Kasturba Gandhi had lived for 12 years between 1918 and 1930.

The official said the US President would be briefed about Gandhiji and the importance of charkha as a symbol of self-reliance.

There will be a cultural extravaganza at the Motera stadium during the 'Namaste Trump' event, where Trump and Modi will address the gathering.

Bollywood singer Kailash Kher and some Gujarati folk singers will perform at the stadium, officials of the Gujarat Cricket Association said.

Students of various government and private schools have also been roped in to perform at cultural events and they have been practicing for days, an official said.

Billboards with slogans hailing Indo-US relations and having pictures of Trump and Modi walking together, shaking hands, and waving at the crowd during the 'Howdy Modi' event are dotting the city.

Thiruvananthapuram, Mar 28: Kerala Chief Minister Pinarayi Vijayan has sought Prime Minister Narendra Modi's intervention to remove the blocking of roads including state highway along the border of Karnataka in view of lock down to contain the spread of COVID-19.

In a letter sent to the Prime Minister on Friday evening, the Chief Minister said certain actions by the Karnataka Police have resulted in the blocking the Thalassery-Coorg State Highway-30. This road connects Kerala with Coorg in Karnataka via Veerajapettah. This route is a lifeline for flow of essential commodities to Kerala."

"If this is blocked, vehicles carrying essential commodities will have to travel a much longer route to reach our state. Given the situation of national lock down, this will add much more hardship to people," it said.

"You will naturally agree with me that no action impeding the movement of essential commodities should be initiated at this moment of crisis," he hoped.