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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, Jul 21: Air India trade unions have complained to Civil Aviation Minister Hardeep Puri that the government has now turned a blind eye to the management's ethnic cleansing at lower levels through compulsory leave without pay (LWP), redundancies and wage cuts.

In a letter to Puri, the Joint Action Forum of Air India unions said, "We are deeply ashamed to say that it seems that after praising our Air Indian Corona Warriors at grand functions, respectfully, the government has now turned a blind eye to this management's ethnic cleansing of Air Indians at the lower levels, through compulsory LWP, redundancies and wage cuts."

The Joint Action Forum of Air India unions strongly opposes this Compulsory Leave without pay scheme as it is an illegal practice and is not a voluntary scheme.

"In fact the Board resolution itself empowers the Chairman and Managing Director with extraordinary powers, which seem akin to a High Court, to pack off employees on 2 years leave (extended to 5 years) at CMD's discretion or at the arbitrary whim of the Regional heads," the trade unions said.

"This said Compulsory LWP scheme violates every labour law put in place by Parliament and orders of the Supreme Court and various other courts and seeks to dispossess the lower categories workers of their legally guaranteed rights," it added.

The trade unions have pointed out that the redundancies are at the elite management cadre level and not the workers.

"We are indeed shocked that the management of Air India could prepare and formulate a scheme for compulsorily sending workers on leave without pay, which is akin to an illegal lay-off, under the garb of a Leave Without Pay, when ironically the redundancy actually lies in the upper echelons of management and not with the humble workers of Air India, who have slogged to make our Airline the treasure it is," they complained to Puri.

"It must be noted that out of 11,000 permanent employees, our management occupies almost 25% as Executive Cadre, with little or no accountability. Solely amongst the Elite Management Cadre, we have 121 top officers ranking from DGMS, GMs, EDs to Functional Directors, most of whom are either performing duplicate job functions or are indeed redundant and not to mention the retired relics serving as consultants and also the CEOs of various subsidiary companies," they added.

Trade unions said the redundancy or compulsory leave without pay scheme if any at all, has to apply only to these Executives, more so, when they do not even have protection of labour laws or Supreme Court orders.

Strangely, the topmost corporate executive cadre and the backroom Generals, have saved themselves from the axe of wage cuts, by sacrificing a piffling of a few grand, whilst the frontline warriors of flying cabin crew, engineers, ground staff have borne the biggest brunt head on, the unions said.

The government suspended all the India-bound air travel from China and has declared all visas 'invalid', on Monday, due to the rapid escalation of cases of novel coronavirus outbreak which originated in Wuhan.

"Embassy and our Consulates have been receiving several queries from Chinese citizens as well as other foreign nationals, who are based out of China or visited China in the last 2 weeks, as to whether they can use their valid single/multiple entry visas to travel to India," tweeted the Embassy of India in Beijing, China.

"It is clarified that existing visas are no longer valid. Intending visitors to India should contact the Indian Embassy in Beijing ([email protected]) or the Consulates in Shanghai ([email protected]) and Guangzhou ([email protected]) to apply afresh for an Indian visa," it said.

Further, regarding the validity of visas, the embassy said, "Indian Visa Application Centres (http://blsindia-china.com) in these cities may also be contacted in this regard. Visa Section of the Embassy/Consulates of India in China can be contacted to ascertain the validity of visa before undertaking any visit to India."

"All those who are already in India (with regular or e-visa) and had traveled from China after January 15 are requested to contact the hotline number of Ministry of Health and Family Welfare of Government of India (+91-11-23978046 and email: [email protected])," the embassy said.