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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, Feb 21: Historian Ramachandra Guha on Thursday refuted Karnataka home minister Basavaraj Bommai's claim that the latter had apologised for police allegedly manhandling him during an anti-CAA protest in the city, saying he received no such call or apology.

The writer further said even if such an apology had been offered, he would have rejected it.

"The Home Minister of Karnataka has claimed on the floor of the State Assembly that he apologised to me by phone for the manhandling by the Bengaluru police on 19th December 2019. This is false.

I received no such call or apology," Guha tweeted.

"Even if such an apology had been offered, I would have rejected it.

The imposition of Section 144 was illegal (as the Karnataka High Court has since held) and I was proud to be one of thousands of peaceful protesters who defied the States arbitrary action on that day," he said in another tweet.

During his reply to the debate on law and order situation in the state, Bommai on Wednesday claimed that he had apologised to Guha.

The minister was apologising to senior Congress MLA and former Speaker K R Ramesh Kumar for police serving him notice and detaining him along with others at Mangaluru airport in December for trying to enter the city despite restrictions following violence there.

Stating that anti-CAA protests have taken place peacefully across the state, he had said, there might have been minor discrepancies, like that with historian Ramachandra Guha, being manhandled during a protest.

"I have called and apologised to him," he had said.

Guha was detained on December 19 for staging a demonstration against the Citizenship Amendment Act and National Register of Citizens at the Town Hall here, in defiance of the prohibitory orders imposed in the city.

He was taken away by police personnel and led to a police vehicle parked nearby.

Leader of Opposition in the assembly and former chief minister Siddaramaiah said Bommai has committed a "perjury" in the House, and asked him to apologise to people and Guha in front of media.

"Bommai has committed a perjury on the floor of the House. It answers the question of where @BJP4India workers derive their motivation to spread fake news.

Bommai has insulted the people whom he represents," he tweeted and demanded that he apologize to people and Guha.

Bengaluru, May 18: Indian food delivery startup Swiggy said on Monday it would lay off 1,100 employees, or nearly 14% of its workforce, to cut costs, as a weeks-long nationwide lockdown to curb the coronavirus outbreak hits demand for online food ordering.

The company, backed by South African internet giant Naspers, also said it will scale down adjacent businesses and has already shut several of its cloud kitchens - facilities that only cater to takeaway orders - temporarily or permanently.

“The core food delivery business has been severely impacted and will stay impacted over the short term, but is expected to start growing again after that,” said Sriharsha Majety, co-founder and chief executive at Bengaluru-based Swiggy.

Swiggy, one of India’s best known startups, is among many that are laying off employees and reshaping their business in response to the COVID-19 pandemic, which has forced 1.3 billion Indians indoors and crippled business.

India is currently under a two-month lockdown, and though several curbs are being eased, public places such as restaurants remain closed, hurting restaurants themselves as well as companies such as Swiggy and main rival Zomato.