Priya Ramani pleads not guilty in defamation case filed by M J Akbar

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, Jun 8: Union Human Resource Development Minister Ramesh Pokhriyal Nishank has said that CBSE board results can be declared by August 15. The results of both class 10 and 12 will be declared at an interval of just a few days.

However, the decision to open schools will be taken after August keeping in mind the current COVID-19 situation. At present, the Ministry of Human Resource Development has not set any date for reopening schools.

Nishank said during a discussion "We hope that the results of both 10th and 12th class will be declared by August 15. These include the results of previous exams and the results of examinations in July."

On the issue of reopening of schools, Nishank said "after August the process of opening schools will be started."

A final decision in this regard will be taken only after assessing the prevailing conditions. According to the HRD ministry, after August, new sessions will also start in universities.

Meanwhile, the Arvind Kejriwal government in Delhi has also written to the HRD ministry on the subject of reopening schools. Delhi Education Minister Manish Sisodia said in the letter, "Delhi Chief Minister Arvind Kejriwal said some time ago that we have to learn to live with coronavirus. So it would be better to open schools with proper safety measures."

Sisodia said that first of all, we have to assure every child that they are important to us. Everyone has equal rights over the physical and intellectual environment of his school. Education cannot progress beyond online classes only. It would be impossible to pursue education only by calling older children to school and keeping younger children at home.

Several private schools have also suggested measures to the HRD ministry to open schools and safety in schools during this period. However, the ministry is not in a hurry to reopen schools at present. According to senior officials of the ministry, at present, preparations are being made to conduct the remaining board exams of class 10 and 12 between July 1 and 15.

After the examinations, the first priority is to declare the results. Only then can the process of reopening school colleges begin.