RK Pachauri, former TERI chief, passes away at 79

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.

Kolkata, Jun 24: Trinamool Congress (TMC) MLA Tamonash Ghosh, who had tested positive for Covid-19 in May, died at a hospital here on Wednesday, party sources said.

He was 60.

The three-time MLA from the Falta assembly constituency in South 24 Parganas district was admitted to a hospital after he tested positive for the disease, they said.

He had several complications related to the heart and the kidney, the sources said.

"Very, very sad. Tamonash Ghosh, 3-time MLA from Falta & party treasurer since 1998 had to leave us today. Been with us for over 35 years, he was dedicated to the cause of the people & party. He contributed much through his social work," West Bengal Chief Minister and TMC supremo Mamata Banerjee tweeted.

"He has left a void that will be difficult to fill. On behalf of all of us, heartfelt condolences to his wife Jharna, his two daughters, friends and well-wishers," she added.

New Delhi, Jul 22: India is responding with utmost urgency to coronavirus from the very beginning and has been continuously strengthening preparedness and response measures, WHO Regional Director (South-East Asia) Poonam Khetrapal Singh said on Wednesday.

"India is responding with utmost urgency to COVID-19 from the start. It's been continuously strengthening preparedness and response measures, including ramping up testing capacities, readying more hospitals, arranging and stocking up medicines and essentials," Singh said at a virtual briefing.

"India took bold, decisive and early measures earlier in the outbreak. The country did not witness an exponential increase in cases like some other countries which reported their first few cases along with India. Like in any other country the transmission of COVID-19 is not homogenous in India. There are areas yet to see a confirmed case, some have sporadic cases, in some areas some small clusters while we are witnessing large clusters in some megacities from the densely populated areas," Singh said.
She said WHO was aware of varying capacities at sub-national levels.

"Not unusual in a country as big as India and its population size that measures taken may often not be uniformly sufficient across all areas. Scaling up capacities and response remains a constant need in India."

Replying on the question of what more needs to be done in controlling the spread of COVID-19, she said all countries including India must continue to implement core public health and social distancing measures.

"Local epidemiology to guide our response for finding hotspots and testing, detecting, isolating and providing care to the affected, promoting safe hygiene practices and respiratory etiquette, protecting health workers and increasing health system capacity is also key," she said.