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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.

New Delhi, Jun 13: Loss of smell or taste has been added to the list of COVID-19 symptoms, according to the revised clinical management protocols released by the Union Health Ministry on Saturday.

The ministry said that coronavirus-infected patients reporting to various COVID-19 treatment facilities have been reporting symptoms like fever, cough, fatigue, shortness of breath, expectoration, myalgia, rhinorrhea, sore throat and diarrhea.

They have also complained of loss of smell (anosmia) or loss of taste (ageusia) preceding the onset of respiratory symptoms.

Older people and immune-suppressed patients in particular may present with atypical symptoms such as fatigue, reduced alertness, reduced mobility, diarrhoea, loss of appetite, delirium, and absence of fever, the ministry said.

Children might not have reported fever or cough as frequently as adults.

The US's national public health institute, the Centers for Disease Control and Prevention (CDC), had in early May incorporated "a new loss of taste or smell" in the list of COVID-19 symptoms.

According to the data from Integrated Health Information Platform and Integrated Disease Surveillance Programme, portal case investigation forms for COVID 19 (n=15,366), the details on the signs and symptoms reported are (as on June 11), fever (27 per cent), cough (21 pc), sore throat (10 pc), breathlessness (8 pc), Weakness (7 pc), running nose (3pc ) and others 24 pc.

According to the health ministry, people infected by the novel coronavirus are the main source of infection.

Direct person-to-person transmission occurs through close contact, mainly through respiratory droplets that are released when the infected person coughs, sneezes, or talks.

These droplets may also land on surfaces, where the virus remains viable. Infection can also occur if a person touches an infected surface and then touches his or her eyes, nose, or mouth.

The median incubation period is 5.1 days (range 2–14 days). The precise interval during which an individual with COVID-19 is infectious is uncertain.

As per the current evidence, the period of infectivity starts 2 days prior to onset of symptoms and lasts up to 8 days.

The extent and role played by pre-clinical/ asymptomatic infections in transmission still remain under investigation.