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Bengaluru, Mar 10: Three more positive COVID-19 cases have been confirmed in Karnataka taking the tally to four, state Health Minister B Sriramulu on Tuesday informed.

"Their family members have been isolated and their health is being monitored. I urge citizens to take precautionary measures and co-operate in preventing the spread of this infection," Sriramulu said.

As on Monday, the national tally of persons affected by the coronavirus is 45.

According to the Indian Council of Medical Research (ICMR), in the past 24 hours, one positive case from Kerala, two from Pune, and three from Bengaluru have been confirmed.

Apart from the ICMR; National Institute of Virology in Pune; 51 Virus Research and Diagnostic Laboratories; and National Centre for Disease Control, New Delhi are carrying out tests for COVID-19.

Mysuru, Mar 13: A state-of-the-art viral research laboratory in the city has been identified as one of the testing laboratories for the detection of COVID-19, official sources said here on Friday.

The samples of suspected cases could be sent to the lab for analysis and it would take about three hours to get the results.

The Viral Research and Diagnostic Laboratory (VRDL), which was set up from Central grants and functions at the Microbiology Department of K.R. Hospital, has been authorised to carry out the tests. This lab in Mysuru is among the 52-plus laboratories in the country.

Though the VRDL is equipped to carry out the tests, the sole authority of confirming the virus lies with the Indian Council of Medical Research (ICMR)-National Institute of Virology (NIV) in Pune. VRDL is also the sole agency for collection and transportation of suspected samples of COVID-19 to NIV.

VRDL, which is part of the Mysore Medical College and Research Institute, functions on the advice of NIV.

According to the guidelines issued by ICMR, the results of the tests done here have to be shared with NIV the same day and the labs are not supposed to disclose the results since the NIV is the only authority to declare positive cases. Also, confirmation from the NIV should be awaited in case the samples test negative for COVID-19. The ICMR, in the guidelines made available on its website, has advised clinicians at labs to isolate the patient tested positive for COVID-19 in the identified facility and follow bio-safety precautions.

VRDL is a part of a network of labs established by the Department of Health Research, Government of India. The rise in the number of viral outbreaks and the resultant mortality had been cited as key reasons for the launch of network of such hi-tech labs in the country.

The NIV and the National Centre for Disease Control, Delhi, are the top laboratories for the network, while the National Institute of Epidemiology, Chennai, is the supervising authority for the data generated by the network of labs, sources added.

Bengaluru, May 28: As many as 115 new coronavirus cases were reported in Karnataka on Thursday taking the infection count to 2,533, Karnataka Minister S Suresh said.

The total coronavirus cases include 834 discharges, 1,650 active cases, 47 deaths so far due to the disease and two deaths due non-COVID causes, Suresh Kumar, who is minister for primary and secondary education, said during the daily COVID-19 briefing.

According to him, 29 cases were reported in Udupi on Thursday, followed by 24 in Dakshina Kannada district, 13 in Hassan, 12 in Bidar, nine in Bengaluru Urban, seven in Yadagiri, six in Chitradurga, five in Kalaburagi, four in Haveri, three in Chikkamagaluru, two in Vijayapura and one in Raichur.

The minister said among the new cases, 95 are inter-state passengers and two international passengers.

According to the health department, 84 infected people have returned from Maharashtra and eight from Tamil Nadu.

Among those discharged today, 13 are in Davangere, 12 in Dakshina Kannada, nine each in Yadagiri and Vijayapura, five in Gadag, three in Belagavi, one each in Mysuru and Bagalkote.

Two are severe acute respiratory infection cases.

There were, however, no coronavirus related deaths in the state today, the minister said.

Kumar said the government has issued another circular making changes in the quarantine rules.

"A person who has completed seven days of institutional quarantine and is asymptomatic can be permitted for home quarantine without a COVID test, subject to undergoing medical check-up," the minister said.

According to the circular, all elderly people of above 60 years of age and those with comorbidities such as diabetes, hypertension, asthma, heart ailment and renal diseases, are required to be clinically evaluated diligently prior to shifting them to home quarantine.

Such people will be under mandatory home quarantine for seven days, the circular read.