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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.

Mumbai, Mar 27: The Reserve Bank of India (RBI) on Friday lowered the key repo rate by 75 basis points to 4.4 per cent in a bid to arrest the economic slowdown amid coronavirus (COVID-19) outbreak.
The reverse repo rate now stands at 4 per cent, down by 90 basis points, said RBI Governor Shaktikanta Das adding this has been done to make it unattractive for banks to passively deposit funds with the central bank and instead lend it to the productive sectors.
The six-member monetary policy committee (MPC) met on March 24, 25 and 27 and voted 4:2 in favour of the repo rate reduction. The MPC also decided to continue with the accommodative stance as long as it is necessary to revive growth and mitigate the impact of COVID-19 on the economy while ensuring that inflation remains within the target.
"The need of the hour is to shield the economy from the pandemic," said Das. "We need to mitigate the impact of coronavirus, revive economic growth and provide financial stability."
Repo rate is the rate at which a country's central bank lends money to commercial banks, and the reverse repo rate is the rate at which it borrows from them.
The RBI Governor further said that the economic growth and inflation projection will be highly contingent depending on the duration, spread and intensity of the pandemic.
"Global economic activity has come to a near standstill as COVID-19 related lockdowns and social distancing are imposed across a widening swathe of affected countries. Expectations of a shallow recovery in 2020 from 2019's decade low in global growth have been dashed," said Das.
"The outlook is now heavily contingent upon the intensity, spread and duration of the pandemic. There is a rising probability that large parts of the global economy will slip into recession," he said.
However, the RBI has injected liquidity of Rs 2.8 lakh crore via various instruments equal to 1.4 per cent of GDP. "Along with today's measures, liquidity measures equal to 3.2 per cent of GDP. The RBI will take continuous measures to ensure liquidity in the system."
The RBI governor has said that all banking institutions can offer a three-month moratorium on all loans for a period of three months. The RBI has also allowed banks to restructure the working capital cycle for companies without worrying that these will have to be classified as a non-performing asset (NPA).
The three-month moratorium will permit banks to avoid a large onset of NPAs during the 21-day lockdown and keep their books healthy.
Das said banks and other financial institutions should do all they can to keep credit flowing to economic agents facing financial stress on account of the isolation that the virus has imposed.
"Market participants should work with regulators like the RBI and the Securities and Exchange Board of India (SEBI) to ensure the orderly functioning of markets in their role of price discovery and financial intermediation," he said.

New Delhi, Mar 23: The total number of COVID-19 cases in the country rose to 390 on Monday after 30 fresh cases were reported.

The figure includes 41 foreign nationals and the seven deaths reported so far.

Gujarat, Bihar and Maharahstra reported a death each on Sunday, while four fatalities were reported earlier from Karnataka, Delhi, Maharashtra and Punjab, the Union Health Ministry said.

The total number of active COVID-19 cases across the country now stands at 359, while 24 people have been cured/discharged/migrated.