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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.

Mangaluru, Jul 5: A COVID-19 patient escaped from a hospital in Mangaluru on Sunday, Mangaluru Commissioner of Police Vikas Kumar.

A total of 1,925 cases of COVID-19 and 37 deaths recorded in Karnataka in the last 24 hours, taking the total number of cases to 23,474.

The health department informed that the death toll rose to 372 while active cases stood at 13,251 in the state.

According to the Union Health Ministry, India has recorded 6,73,165 numbers of COVID-19 cases and 19,268 deaths. 

Mangaluru, Jul 10: A 58-year-old official of the Central Industrial Security Force (CISF) has died due to the coronavirus infection, taking the death toll in the paramilitary force because of the disease to nine, officials said on Friday.

Assistant Sub Inspector K B Premsha, posted in the CISF unit that guards the Mangalore Refinery and Petrochemicals Ltd (MRPL), passed away at a local hospital on Thursday, they said.

He was admitted to the hospital on July 5 with fever. His COVID-19 test report arrived on July 7 and it was positive. Premsha breathed his last on Thursday, officials said. He was a resident of Kodagu in Karnataka.

This is the ninth COVID-19 death in the force that has recorded 1,137 cases till now, according to an official data.

Of the total cases reported in the force so far, 410 are under treatment across the country, nine have died and the rest have recovered, officials said.

They said that 20 personnel tested COVID-19 positive on Friday while 22 have recovered over the last 24 hours.

The about 1.62-lakh strong CISF is the national aviation security force guarding 63 airports at present and it is also tasked to guard vital installations in the aerospace and nuclear domain.