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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, Apr 20: The Kerala government announced the relaxation of COVID-19 lockdown restrictions in two zones, allowing among other private vehicles movement in an odd-even basis and dine-in services at hotels from Monday.

State police chief Loknath Behera said the relaxations of restrictions imposed would come into effect in the Green and Orange-B zones in the state from Monday,an official release said.

Earlier, the Left government had colour-coded 14 districts of the state into four zones-- Red, Green, Orange-A and Orange-B, for containing the Covid-19 pandemic. Red zone comprises Kasaragod, Kannur, Kozhikode and Malappuram districts. In this zone, a complete lockdown will be in place until May 3 while two entry and exit points are allowed for carrying essential commodities to coronavirus hotspots. Orange-A zone comprises Pathanamthitta, Ernakulam and Kollam while orange-B zone comprises Alappuzha, Thiruvananthapuram, Palakkad, Thrissur and Wayanad.

The lockdown will be in effect until April 24 in this zone and then partial relaxation will be allowed. Kottayam and Idukki come under the Green zone, in which lockdown will be in effect until April 20 and then regulations will be eased. However, large gatherings, the functioning of educational institutions, religious functions, celebrations and travel outside the district will not be allowed in this zone.

Not more than 20 people are allowed to take part in weddings and funerals, according to government instructions. On the functioning of courts, the release said, "Courts in the Green and Orange-B zones will re-open on April 21 while that in Orange-A zone will start functioning from April 25. The courts will function with 33 per cent of staff. The cases will be heard via video conferencing."

Meanwhile, the Bankers' Council has announced that banks will function as per the usual timings from Monday in the state except four districts falling under the Red zone. The Transport Ministry has clarifiedthat public transport won't be allowed to ply in the state during the lockdown period. "Inter-district travel will not be allowed despite relaxations in the state, but essential services such as medical services, food supplies will not be stopped. However, in case of emergency, inter-district travel will be allowed with an affidavit prepared by the traveller," Behra said in a release.

On the implementation of the odd-even scheme for private vehicles, the police said, "Vehicles with odd numbers will be permitted on Mondays, Wednesdays and Fridays. Those with even numbers will be allowed on Tuesdays, Thursdays and Saturdays." Woman drivers travelling solo or with dependants are also exempted from it, police said. On Sundays, only those working for essential services are allowed to use their vehicles.

All education institutions, cinema halls, shopping malls, public parks, bars, places of worship will remain closed in all zones of the state. The health department and local administration, which carry out sanitation work before the monsoon, are allowed to operate. Four-wheelers are permitted to carry two passengers besides the driver and in case of a two-wheeler, only the driver will be allowed while the pillion rider is allowed in case the person is a family member.

On Dine-in services, a government order said it is allowed at hotels and restaurants until 7 PM in Green and Orange-B zone from Monday and in Orange-A zone from April 24. However, take-away counters can function until 8 PM, it said. Kerala on Sunday reported two positive cases of Covid-19 in the state taking the total number of affected to 401 while the health department announced that 13 people were cured.

Belagavi,  Jul 19: In a heart-wrenching incident, a woman used a pushcart to take the body of her dead husband to the crematorium after she allegedly did not receive any help from relatives who suspected him to have died of Covid.

The woman and her son were seen pushing the body in the Athani thaluk of Belagavi.

The man had died two days ago at his residence and no family member apart from the close members attended the last rites due to the fear that he was COVID-19 positive.

It was later found that the deceased person was COVID-19 negative.

A total of 3,693 new COVID-19 positive cases and 115 deaths were reported in Karnataka on Friday, said the state health department.

The total number of COVID-19 cases in the state is presently at 55,115, including 33,205 active cases. While there are 20,757 recoveries, the death toll stands at 1,147.