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May 12: Children suffering from non-respiratory disease symptoms like diarrhea and fever, or those with a history of exposure to the novel coronavirus, should be suspected of having COVID-19, a new study says.

According to the research, published in the journal Frontiers in Pediatrics, gastrointestinal symptoms first suffered by some children hints at potential infection with SARS-CoV-2 through the digestive tract.

"This case series is the first report to describe the clinical features of COVID-19 with non-respiratory symptoms as the first manifestation in children," the scientists from Tongji Hospital in China wrote in the study.

They explained that the gastrointestinal symptoms could be arising since the type of receptors in lung cells targeted by the virus can also be found in the intestines.

Most children are only mildly affected by COVID-19, and the few severe cases often have underlying health issues, the researchers said.

"It is easy to miss its diagnosis in the early stage, when a child has non-respiratory symptoms, or suffers from another illness," said study co-author Wenbin Li, who works at the Department of Pediatrics, Tongji Hospital.

"Based on our experience of dealing with COVID-19, in regions where this virus is epidemic, children suffering from digestive tract symptoms, especially with fever and/or a history of exposure to this disease, should be suspected of being infected with this virus," Li said.

In the study, the scientists described the clinical features of children admitted to hospital with non-respiratory symptoms, who were subsequently diagnosed with pneumonia and COVID-19.

"These children were seeking medical advice in the emergency department for unrelated problems, for example, one had a kidney stone, another a head trauma," Li said.

The study noted that all the children had pneumonia, which was confirmed by chest X-ray scan before or soon after admission.

These children were then confirmed to have COVID-19.

While their COVID-19 symptoms were initially mild or relatively hidden before their hospital admission, four out of the five cases had digestive tract symptoms as the first manifestation of this disease, the researchers said.

Li hopes that doctors will use the findings to quickly diagnose and isolate patients with similar symptoms, which may aid early treatment and reduce transmission.

According to the researchers, the children's gastrointestinal symptoms, which have also been recorded in adult patients, could be an additional route of infection.

"The gastrointestinal symptoms experienced by these children may be related to the distribution of receptors and the transmission pathway associated with COVID-19 infection in humans," Li explained.

Since the virus infects people via the ACE2 receptor, which can be found in certain cells in the lungs as well as the intestines, COVID-19 might infect patients not only through the respiratory tract in the form of air droplets, but also through the digestive tract by contact or fecal-oral transmission, the study noted.

While COVID-19 tests can occasionally produce false positive readings, Li said all the five children assessed in the study were infected with the disease.

However, he cautioned that more research is needed to confirm their findings.

"We report five cases of COVID-19 in children showing non-respiratory symptoms as the first manifestation after admission to hospital. The incidence and clinical features of similar cases needs further study in more patients," he said.

Mangaluru, May 10: A special train carrying 1,140 migrant workers stranded here in the lockdown has left Mangaluru railway station for Jharkhand.

Dakshina Kannada MP Nalin Kumar Kateel and Vedavyas Kamath, MLA, were present at the railway station on Saturday night when the train left.

Kamath said the workers who had registered on the state governments Seva Sindhu portal were brought to the railway station in Karnataka State Road Transport Corporation buses.

A health check-up was carried out before they boarded the train.

The district administration also provided food packets and water to the migrants at the station.

Three more trains will leave from Mangaluru for Uttar Pradesh, Bihar, and Jharkhand soon, he said.

Meanwhile, in a statement, Dakshina Kannada Deputy Commissioner Sindhu P Rupesh said train services are being arranged for migrant workers who have registered their names on the Seva Sindhu portal.

The workers will be informed when trains are arranged to their destinations and they need not throng the railway station unnecessarily, she said.

Around 20,000 workers have so far registered themselves online, including 5,000 from Jharkhand, 3,000 from Uttar Pradesh and 4,000 from Bihar.

Hundreds of migrant workers had on Friday staged a protest at the central railway station here, demanding that they be sent back home.

The workers went back to their camps only after district authorities and police gave them assurance that trains will be arranged in three days.