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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.

Bengaluru, Jun 15: Karnataka Chief Minister B S Yediyurappa on Monday laid the foundation stone for the construction of a Rs 220 crore airport project in his political bastion of Shivamogga, as he expressed confidence that it will give a boost to tourism, industries and economic activities in the region.

"The long cherished dream of people of Shivamogga about having an airport is finally becoming a reality.

The project that was planned when I was Deputy Chief Minister and Chief Minister in the past was shelved due to contractor issues and lack of interest by the governments that came later," Yediyurappa said.

Speaking at the foundation laying event for the airport, which he attended virtually via video conference, he said, now the government is once again taking up the project through infrastructure development and PWD departments.

The project to construct the well-equipped airport at Sogane in Shivamogga taluk at the cost of Rs 220 crore in about 662.38 acre land area has been initiated, he said, adding that the project will be taken up in two phases.

He expressed hope that it will be completed in a year's time.

The first phase consists of runway, taxiway, apron, approach road, peripheral road and compound wall construction, while the second phase consists of terminal building, ATC tower, fire station building, among others, a release said.

Noting that under the Udan scheme the project has been envisaged to provide affordable air travel to people, the Chief Minister expressed confidence about tourism, industries and economic activities in the region getting a boost, with the small airport coming up at Shivamogga.

He also directed officials to complete the airport work on time without compromising on the quality.

Highlighting various developmental works that is being implemented in Shivamogga, the district which is regarded as his political turf, Yediyurappa said, with the cooperation of the central government various railway projects have also been taken up in the district including Shivamogga- Shikaripura rail route.

Shikaripura is the constituency represented by the Chief Minister, while his son B Y Raghavendra represents Shimoga constituency in Lok Sabha.

Yediyurappa, who also inaugurated the divisional office of National Highway authority in the district, said a bridge project across river Sharavati at Singndur in Sagara taluk will be taken up.

Conceding that developmental work has taken a backseat due to the COVID-19 situation, the Chief Minister said the challenge is to overcome it and achieve development.