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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 31: As many as 299 fresh covid-19 cases reported in Karnataka today. Most of them have interstate travel history.

With this total number of covid-19 cases in Karnataka rose to 3221. 

District wise cases: Raichur 83, Yadgir 44, Bidar 33, Kalaburagi 28, Vijayapura 26, Bengaluru Urban 21, Dakshina Kannada 14, Mandya 13, Belagavi 13, Udupi 10, Davangere 6, Uttara Kannada 5, Ballari, Shivamogga, Kolar 1 each.

Two more deaths reported in the state. One of the patients is a 50 year old male from Raichuru district, who returned from Maharashtra. Another is a 75 year old man, a resident of containment zone in Bidar. With this the number of COVID 19 related deaths rose to 51.

Bengaluru, July 14: Ahead of the week-long lockdown in Bengaluru starting from Tuesday night, around 35,000 people have left the city and grocery stores and liquor shops are witnessing a rush with customers thronging to stock up on for the shutdown.

According to transport department officials, labourers from other parts of the state migrated in good numbers from Bengaluru ahead of the lockdown fearing that they would have to face similar challenges as they had to confront during the previous shuttering. 

"Yesterday 35,000 passengers left Bengaluru. The number is big given the fact that we are allowing a limited number of passengers in the buses to maintain social distancing," a KSRTC official said.

Tipplers made a beeline for liquor shops and a senior State Excise official said liquor worth Rs 230 crore was sold on Monday alone.

"There was apparently a mad rush yesterday.India Made Foreign Liquor worth Rs 215.55 crore and 14.83 crore worth beer was sold...," the officer said.

In view of the rising coronavirus cases in the city at an alarming proportion, the government decided to impose lockdown from Tuesday 8 pm till 5 am on July 22.

Later, Dharwad and Dakshina Kannada districts too decided to impose a lockdown for nine days and seven days respectively from Wednesday.

"For the past two days there is an unusual rush of customers in our store," an executive of the Metro Cash and Carry said.

According to him, people are buying grocery items and vegetables with long shelf life such as onion, potato, radish, carrot and beetroot.

A salesperson at the Star Bazaar too said people were thronging the store for the past two to three days.

During the Sunday curfew, Home Minister Basavaraj Bommai said the week-long lockdown will be stringent one and government has made all arrangements to address all concerns ahead of the shutdown.

As many as 19,702 people in Bengaluru have tested positive, of which there are 15,052 active cases, while 4,328 have been discharged.

The number of fatalities as of Monday is 321.

Across Karnataka, 41,581 people have tested positive for coronavirus including 24,572 active cases, 16,248 discharges and 757 deaths since the outbreak of the pandemic in the state.