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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, Jul 22: A total of 4,764 new COVID-19 cases and 55 deaths were reported in Karnataka in the last 24 hours.

Out of the new cases, 2,050 cases were reported in Bengaluru on Wednesday.

The total number of active cases stands at 47,069, said the state Health Department.

Death toll rises to 1,519 in the state.

New Delhi, Jun 4: The Supreme Court on Wednesday sought response from Prajwal Revanna, the grandson of former Prime Minister HD Deve Gowda, on a plea challenging his election in 2019 from Hassan Lok Sabha constituency as a joint candidate of the Janata Dal Secular and the Congress.

A bench of Chief Justice SA Bobde and Justices AS Bopanna and Hrishiksh Roy issued notice to the returned candidate from the high-profile constituency on an appeal challenging the Karnataka High Court's order by which an election petition against his win was dismissed.

In the proceedings held through video-conferencing, the top court issued notice and tagged the appeal filed by G Devarajegowda for hearing with other similar pending plea filed by the BJP candidate on the issue.

Mr Devarajegowda in the plea said that his election petition was dismissed by the High Court on "procedural irregularities". The plea said that Mr Prajwal had resorted to unfair and corrupt practices and his election should be set aside.

It said the High Court did not consider the fact that by dismissing the election petition, it was running a risk of having a representative in parliament who has not got the maximum number of valid votes.

The petitioner, an advocate by profession, sought a declaration of rival BJP candidate, A Manju, as the winner for having secured the maximum number of valid votes.

A separate appeal was earlier filed by Mr Manju against the High Court order and the top court had already issued notice to the retuned candidate on that.

Mr Manju had challenged the 2019 election of Mr Prajwal on the ground that there was allegedly non-disclosure of assets held by him in his election affidavit.

Mr Prajwal was declared winner with 6,76,606 votes. Mr Manju came first runner-up with 5,35,282 votes.