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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, May 10 The asymptomatic and healthy people among international passengers will now have to undergo institutional quarantine for 14 days, according to the new standard operating procedure (SoP) issued by the Karnataka government for a third time.

The SoP, which has been revised twice, was issued by the Health and Family Welfare Department on Saturday, May 9.

The international passengers will be divided into two categories upon their arrival at the airports. Symptomatic will be directly sent to the covid-19 hospitals. Asymptomatic will not be allowed to go home directly. They will be sent for mandatory quarantine for 14 days in hotels and guest houses. 

Earlier, international passengers had to undergo seven days of institutional and seven days of home quarantine.

Passengers will also be tested only twice — once on arrival and for the second time on the 14th day — instead of the earlier decision to test thrice. They will be discharged from the facility if they test negative.

The first group of 350 people are expected to arrive from London at 3 am on Monday at the Kempegowda International Airport, said Lakshman Reddy, Joint Director, Social Welfare Department. 

Flights are expected from Singapore on May 13, Jeddah on May 14 and San Francisco on May 15. 

Among the stranded include 4,408 tourists and visitors, 3,084 students, 2,784 migrants and 557 ship crew.

Bengaluru, Mar 3: Bengaluru mayor Gautam Kumar on Tuesday said that the decision to ban protests in front of Town Hall was made by the council and not only by him.

"The decision to ban the protest in front of the Town Hall was made by the entire council and not only my decision. Also, the things which are approved by the councillor are also read by the ruling party leaders," Bengaluru mayor told media.

"Still it is the discretion of the Commissioner to take a call after the council also. As of now, we have banned any protests in front of Town Hall," he added.

Meanwhile, Congress leaders staged a protest against Bruhat Bengaluru Mahanagara Palike (BBMP) Mayor Gautam Kumar and BJP at Council BBMP building against the decision.

"If people will start protesting, it will badly affect the traffic of the city," said Kumar, while commenting on the protest. If they want to talk about the matter, let us have a healthy discussion. I don't have a problem with and I don't think the ruling party has a problem too," he added.

On Sunday, pro-Kannada activist and former MLA Vatal Nagraj staged a protest in front of Sir KP Puttanna Chetty Town Hall (Bangalore Town Hall) against the decision taken by Bengaluru mayor.

Talking to reporters, Nagraj had said: "He does not know the history of the Town Hall. It is a historic building and protests can be staged there."

"Mayor's decision is against Bengaluru's tradition and culture, that's why we are condemning it and are protesting against this decision. We will not allow Mayor's programs in Bengaluru and he will be shown black flags", he added.