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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.

Hubballi, Mar 31: In a bid to increase the country's capacity for isolation facilities, the Railways is converting sleeper class coaches into isolation wards by modifying the coaches as per prototype issued by Railway Board to make them suitable to act as quarantine hubs. On South Western Railway (SWR) a total of 312 coaches will be converted for isolation/quarantine wards.

"The coaches will be equipped with basic facilities needed as per medical guidelines. Provision is being made for charging points of mobiles and laptops. Mosquito nets with space for paramedics etc are also being made available. Each coach will provide 8 berth cabin for isolation facility.

Zonal Railways have been advised to prepare coaches as per isolation cabin prototype to meet the needs of the patients by Railway Board," a press statement of SWR reads.

The efforts of Indian Railways have been aimed not only to supplement the present health infrastructure of the nation but also to contribute to national efforts to fight the coronavirus.

According to the Union Ministry of Health and Family Welfare, the total number of coronavirus cases in the country stand at 1,251.