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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.

Thiruvananthapuram, Mar 28: A man from Kerala was among the terrorists affiliated to Islamic State (IS) who allegedly attacked a Gurdwara in Kabul earlier this week in which 27 people were killed.

The IS has claimed that one of the suicide bombers was Abu Khalid al-Hindi.

According to sources, investigation agencies on Friday have identified him as 29-year-old Mohammed Sajid Kuthirummal of Padne in Kasargod. He was among the 14 persons, who left from Kerala to join IS in Nangarhar province of Afghanistan.

"IS had released the name Abu Khalid al-Hindi through its media agency soon after the attack. The photograph of him holding a rifle was also published by IS in their propaganda magazine Al Naba. From that, we have identified the person as Mohammed Sajid Kuthirummal. We are investigating the matter and in touch with the investigating agencies in Afghanistan for tracking his trail," sources told ANI.

The National Investigation Agency (NIA) probe had earlier revealed that Mohammed Sajid was recruited by Abdul Rashid Abdulla of Chandera, who was killed in Afghanistan last year.

Sajid worked as a shop keeper in a gulf country and returned to Kerala. Based on a complaint by Sajid's father Mahamood, the FIR was registered at Chendara Police Station, Kasaragod in 2016 regarding Sajid joining IS and leaving for Afghanistan.

He was among the 14 member team that left from Kerala to join IS in Khorasan Province' in Nangarhar.

ANI had earlier reported that two of these members Ayesha alias Sonia Sebastian and Fathima alias Nimisha who were in IS had expressed their interest in returning to Kerala. Out of 14, seven including Sajid is dead.

Bengaluru, Jul 14: More than 80 Namma Metro workers have tested positive for COVID-19 in Bengaluru on Tuesday, said Yashwanth Chauhan BL, public relations officer of Namma Metro.

"All safety and treatment protocols would be followed at the camps," he added.

These workers were staying in a camp near Nagavara-Gottigere lane, reach-6 of phase two. More than 200 contract workers of Larsen and Toubro who had come from different states have been tested after a labourer complained of fever.

All coronavirus positive workers were shifted to a COVID care centre while others were kept in isolation as per the guidelines.