Cows rescued' by vigilantes in coastal Karnataka end up in slaughterhouses'

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, Jul 6: With a record 1,925 new cases across the state during the last 24 hours, Karnataka's Covid-19 tally rose to 23,474 including 13,251 active after 9,847 were discharged till date, an official said on Sunday.

"Of the total cases across the state on a single day, Bengaluru accounted for 1,235, taking its positive tally to 9,580, including 8,167 active," said the health official in a statement.

With 37 succumbing to the disease in the state, including 16 from Bengaluru, the state's death toll increased to 372, with 145 from this tech city since March 9.

Of the 603 discharged from across the state during the day, 302 were from Bengaluru, taking its total number of cured to 1,267 so far.

Of the 243 cases in the intensive care unit (ICU) across the state, 132 are in Bengaluru, 15 at Dharwad, 12 at Kalaburagi and 10 each at Ballari and Raichur.

Of the 16,899 samples tested in the day, 14,649 were negative and 1,925 positive. Of the total 7,06,425 samples tested so far, 6,65,525 were negative and 23,474 positive.

After Bengaluru, Dakshina Kannada reported 142 positive cases followed by Ballari 90, Vijayapura 57, Kalaburagi 49 and Udupi and Dharwad 45 each.

Of the total 603 discharged, 52 were from Kalaburagi, 37 from Ballari, 36 from Dakshina Kannada and 22 each from Udupi and Dharwad.