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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, Apr 27: Janata Dal-Secular leader and former Karnataka chief minister HD Kumaraswamy on Monday said that the government should work towards lowering the cost of living as the spending power of the consumer has weakened, and it should impose COVID cess on the ultra-rich.

"The economy won't bounce back within a very short period. It is important to lower the cost of living as the spending power of the consumer has depleted. The government must cut the petrol/diesel prices. The loss of revenue may be offset partially by imposing COVID cess on the ultra-rich," Kumaraswamy tweeted.

"According to RBI and international economic assessment agencies, the GDP growth rate of the country is expected to fall to a historic low. Such a dire situation calls for citizen-centric measures like full or partial waivers of EMIs, rents, school fees, and other levies," he added.

Kumaraswamy further said that the government must announce schemes to save the livelihoods of people, especially those in the unorganised sector.

"It is high time the government announced schemes to save livelihoods of people, especially those in the unorganised sector. The government must provide immediate relief to farmers, construction workers, cab and auto drivers, garment workers, etc," the former Karnataka CM tweeted.

The Confederation of Indian Industry (CII) had said on April 23 that India's economic growth is likely to hover between zero and 1.5 per cent in the current financial year as the extended COVID-19 lockdown slows down activity across most sectors.

India is under a nation-wide lockdown which was imposed on March 25 and later extended on April 14 to May 3 to stem the spread of coronavirus.