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New Delhi, Fevb 10: Of the countries most at risk of importing coronavirus cases, India ranks 17th, researchers have found on the basis of a mathematical model for the expected global spread of the virus that originated in China's Wuhan area in December 2019.

So far, India has reported three coronavirus positive cases -- all from Kerala.

Among the airports in India, the Indira Gandhi International Airport in New Delhi is most at risk, followed by airports in Mumbai, Kolkata, Bengaluru, Chennai, Hyderabad and Kochi, according to the model.

The new model for predicting global novel coronavirus cases has been developed by researchers from Humboldt University and Robert Koch Institute in Germany.

"The spread of the virus on an international scale is dominated by air travel," said the study.

"Wuhan, the seventh largest city in China with 11 million residents, was the relevant major domestic air transportation hub with many connecting international flights before the city was effectively quarantined on January 23, 2020, and the Wuhan airport was closed. By then the virus had already spread to other Chinese provinces as well as other countries," it added.

The researchers said that it is possible to estimate how likely it is that the virus spreads to other areas by looking at air travel passenger numbers.

"The busier a flight route, the more probable it is that an infected passenger travels this route. Using these probabilistic concepts, we calculate the relative import risk to other airports. When calculating the import risk, we also take into account connecting flights and travel routes that involve multiple destinations," said the study.

The top 10 countries and regions at risk of importing coronavirus cases are: Thailand, Japan, South Korea, Hong Kong, Taiwan, USA, Vietnam, Malaysia, Singapore and Cambodia, according to the model.

While Thailand's national import risk is 2.1%, it is 0.2% for India, found the research.

The foundation of the model is the worldwide air transportation network (WAN) that connects approximately 4,000 airports with more than 25,000 direct connections.

The model accounts for both, the current distribution of confirmed cases in mainland China as well as airport closures that were implemented as a mitigation strategy.

This network theoretic model is based on the concept of effective distance and is an extension of a model introduced in the 2013 paper "The Hidden Geometry of Complex, Network-Driven Contagion Phenomena" published in the journal Science.

The current outbreak of the 2019-nCoV virus started in Wuhan city, Hubei province, China. While the first cases were reported as early as December 8, 2019, the outbreak gained global attention on December 31, 2019, when the World Health Organization was alerted to "several cases of pneumonia" by an unknown virus.

The new virus was soon identified as a novel coronavirus and named 2019-nCOV. It belongs to the family of viruses that include the common cold and viruses such as SARS and MERS. On January 20, 2020, it was confirmed that the coronavirus can be transmitted between humans, greatly increasing the risk of a global spread.

The death toll due to the novel coronavirus outbreak in China has increased to 811 on Sunday, surpassing that of the Severe Acute Respiratory Syndrome (SARS) epidemic in 2003.

Although about 20 countries have confirmed cases, China has accounted for about 99 per cent of those infected. The first foreign victims of the virus both died on Saturday in Wuhan.

New Delhi, May 10: A medium-intensity earthquake of 3.4 magnitude hit Delhi on Sunday.

According to the National Center for Seismology (NCS), the quake occurred at 1.45pm at a depth of five kilometres.

There were no immediate reports of loss of life or property.

New Delhi, Jun 9: A record rise in COVID-19 cases in India for the seventh consecutive day has pushed the tally to over 2.6 lakh on Tuesday, with the daily nationwide spike in coronavirus cases inching close to 10,000.

The rise in cases comes at a time when the country has stepped out of a 75-day coronavirus lockdown with malls, religious places and offices opening in several parts of the country under strict conditions.

Since the onset of June, the country has also been witnessing over 200 COVID-19 fatalities each day that has taken the country's death toll to 7,466.

India is the fifth worst-hit nation by the COVID-19 pandemic after the US, Brazil, Russia and the UK, according to the Johns Hopkins University data.

Several states like Haryana, Jammu and Kashmir, Assam, Haryana, Karnataka, Chhattisgarh and Tripura among others have been showing a spurt in cases.

A total 266 new COVID-19 fatalities and 9,987 cases have been reported in the last 24 hours till Tuesday 8 am, according to the Union Health Ministry data.

The country has registered over 9,000 coronavirus infection cases for the sixth day in a row taking the country tally to 2,66,598.

The number of active novel coronavirus cases stands at 1,29,917, while 1,29,214 people have recovered and one patient has migrated, according to the Health Ministry data updated till 8 am.

"Thus, 48.47 per cent patients have recovered so far," a ministry official said.

According to the ICMR, a total of 49,16,116 samples have been tested as on 9 am, Tuesday, with 1,41,682 samples been tested in the last 24 hours.

Out of the total 7,466 fatalities reported till Tuesday 8 am, Maharashtra tops the tally with 3,169 deaths followed by Gujarat with 1,280 deaths, Delhi with 874, Madhya Pradesh with 414, West Bengal with 405, Tamil Nadu with 286, Uttar Pradesh with 283, Rajasthan with 246 and Telangana with 137 deaths.

The death toll reached 75 in Andhra Pradesh, 64 in Karnataka and 53 in Punjab.

Jammu and Kashmir has reported 45 fatalities due to the coronavirus disease, while 39 deaths have been reported from Haryana, 31 from Bihar, 16 from Kerala, 13 from Uttarakhand, nine from Odisha and seven from Jharkhand.

Himachal Pradesh and Chandigarh have registered five COVID-19 fatalities each and Assam and Chhattisgarh have recorded four deaths each so far.

Meghalaya and Ladakh have reported one COVID-19 fatality each, according to ministry data.

More than 70 per cent of the deaths are due to comorbidities, the ministry's website stated

The highest number of confirmed cases in the country are from Maharashtra at 88,528 followed by Tamil Nadu at 33,229, Delhi at 29,943, Gujarat at 20,545, Uttar Pradesh at 10,947, Rajasthan at 10,763 and Madhya Pradesh at 9,638, according to the Health Ministry's data updated in the morning.

The number of COVID-19 cases has climbed to 8,613 in West Bengal, 5,760 in Karnataka, 5,202 in Bihar and 4,854 in Haryana.

It has risen to 4,851 in Andhra Pradesh, 4,285 in Jammu and Kashmir, 3,650 in Telangana and 2,994 in Odisha.

Punjab has reported 2,663 novel coronavirus cases so far, while Assam has 2,776 cases. A total of 2,005 people have been infected by the virus in Kerala and 1,411 in Uttarakhand.

Jharkhand has registered 1,256 cases, while 1,160 cases have been reported from Chhattisgarh, 838 from Tripura, 421 from Himachal Pradesh, 330 from Goa and 317 from Chandigarh.

Manipur has 272 cases, Puducherry has 127 and Nagaland has reported 123 cases till now.

Ladakh has 103 COVID-19 cases, Arunachal Pradesh has 51, Mizoram has 42, Meghalaya 36 while Andaman and Nicobar Islands has registered 33 infections so far.

Dadar and Nagar Haveli has 22 cases, while Sikkim has reported seven cases till now.

The ministry's website said that 8,803 cases are being reassigned to states and "our figures are being reconciled with the ICMR".

State-wise distribution is subject to further verification and reconciliation, it said.