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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.

Kasaragod, Apr 21: Kerala reported a spike in COVID-19 cases on Tuesday with 19 people testing positive, after a decline in the numbers in the past few days, as the total infections touched 426 in the southern state.

Kannur recorded 10 cases, Palakkad four, Kasaragod three and Malappuram and Kollam one each, Chief Minister Pinarayi Vijayan told reporters here.

The number of those getting infected were in single digits over the past few days.

Of the 10 positive cases from Kannur, nine of them had come from abroad and one had been infected through contact, he said.

Pointing out that the positive cases in Palakkad,Malappuram and Kollam had come from neighbouring Tamil Nadu, Vijayan said there is need to enforce strict vigilance in places bordering neighbouring states.

Sixteen people tested negative on Tuesday, while the total active cases 117, he added.

At least 32,000 people are under observation,

Of the around 20,000 samples sent, 19,440 had returned negative, Vijayan said.

Bengaluru, Jul 6: Criminal cases will be registered against private hospitals that refuse treatment to COVID-19 patients, Medical Education Minister Dr K Sudhakar said on Sunday.

Addressing a press conference here at Vidhana Soudha, he said: "No hospital should refuse to admit patients and if any hospital is found denying treatment criminal cases will be registered against them."

He spoke to media persons after returning from his surprise visit to Jayanagar General Hospital and Rajiv Gandhi Chest Hospital responded to the questions regarding private hospitals refusing to treat covid patients.

"The government has come up with 6 different systems for treatment of COVID-19 patients. COVID care centres, government medical colleges, private medical college, government hospitals, corporate hospitals and home isolation with proper facilities and according to government guidelines," the minister added.

Dr Sudhakar gave the statistics of 4 metropolitan cities in the country including Delhi, Mumbai, Chennai and Bengaluru.

"Bengaluru's and the mortality rate is the lowest at 1.46%. The aim is to increase testing by optimal utilisation of capacity especially in private labs. Once we increase testing, it is natural that the positive cases will also increase," he said.

"So citizens need not panic due to this but should take all precautionary measures. He advised to get tested in the nearest fever clinics as soon as any symptoms like cough, fever etc are found. Guidelines regarding the home isolation will be released soon," the minister said.

He announced that 400 ambulances will be deployed in Bengaluru and 2 each for every ward.

He said that the government recommended patients at private hospitals will be provided with insurance under Suvarna Arogya Suraksha Trust.

"If private hospitals refuse to admit the patients, call 1912 helpline to get assistance. If admitted in Private hospital voluntarily the treatment cost will be borne by patients as per the rates fixed by the government," Sudhakar said.

He said that the cost of testing at private labs has been capped at Rs 2,200 as per test.