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Thiruvananthapuram, Apr 21: Not just in China, but in Kerala also robot is now playing a key role in the health workers' fight against COVID-19, thanks to the innovative spirit of a group of young minds and the support of the state Health Department.

Named "Nightingale-19", the robot is deployed to provide food and medicines among patients at the district coronavirus centre in Ancharakandi in Kannur district where a large number of cases have been reported.

The special display facility, attached to it, also allows patients to communicate with health workers and their relatives if necessary, the health minister's office here said.

Designed by the students of Chemberi Vimal Jyothi Engineering College with the support of the Health Department, the remote control-operated robot can carry food and water for at least six persons at a stretch.

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The machine, which can travel up to one kilometre, distributes food, water and medicine in each room, a department statement said.

The robot would be disinfected after each use, it said.

Health Minister K K Shailaja inaugurated the new venture from here recently through the robot's video facility, the statement added.

Robots have been put to use in other parts of the country to help in the health workers' fight against COVID- 19.

Eminent river engineer and former professor of civil engineering at IIT in the Banaras Hindu University (BHU) Prof. U.K. Choudhary has said that the judicious use of river technology can help resolve the Coronavirus crisis as well as the plight of Ganga river.

Choudhary, who is also founder of Ganga Research Centre at IIT (BHU), said: "The Ganga water contains a significantly higher proportion of bacteriophages - a kind of virus that kill bacteria. Our ancient scriptures like Vedas, Puranas and Upanishads say that Ganga jal is medicinal water. Scientists later found that Ganga water has bacteriophages capable of killing pathogens."

Explaining further, he said, "Let us analyze the source of bacteriophages. If we take three rivers of Himalayan origin having sources at different heights -the Ganga (Gomukh), Yamuna (Yamunotri) and the Sone river, we find the colours of waters are different. The whitish colour of Ganga water, greenish colour of Yamuna water and the brownish colour of Sone water is also indicative. As Gomukh is the highest among the three, its water comes from lowest depth of aquifer as compared to Yamunotri and Sone river," he explained.

Thus, the quality of river water is proportional to height of origin point. This defines the genetic character of Ganga water. The balanced flow of this water in entire length of the Ganga defines the medicinal property of Ganga water," he stated.

Prof Chaudhary said that the bacteriophages in the Ganga can curb the spread of coronavirus through soil, water and air.
He suggested that the idea is to preserve the medicinal value of Ganga water and to use it to fight Corona. He said that this can be done by opening the gates of all the dams and barrages in a way that the discharge through each is similar to the water at Gomukh. In this way, the concentration of bacteriophage will be enhanced in Ganga water making it more effective against pathogens.

"With increasing diffusion of bacteriophages in water and soil, the spread of Coronavirus will be impacted and reduced. This methodology and technique can also help maintain the quality of Ganga water later when the problem of Corona ends," he said.

India has jumped past 4.5 lakh coronavirus cases and 14,476 people have succumbed to the viral infection so far. In this backdrop, speaking to IANS in an exclusive interview, AIIMS Director Randeep Guleria said India is also vulnerable to second wave of coronavirus and people should continue to follow social distancing, wearing mask and other precautions, after cases begin to decline.

He added that in order to contain the outbreak of Covid-19, a limited lockdown in hotspots, where volume of cases is very high, may be considered along with a micro-plan to prevent leakage of cases from these areas to other non-containment areas. Excerpts of the interview are below:

Q: Reports say China and South Korea are witnessing a second wave of coronavirus infection, what is this second wave, is India also vulnerable to this?

A: When cases come down significantly, people tend to drop their guard against the viral infection, and this leads to the second wave (which means a sudden increase in the number of cases). After cases begin to decline, people should continue to follow the precautions -- continue to maintain social distancing and wear masks regularly. See what happened in Singapore, it was struck by a second wave of coronavirus. Look, what happened in the 1918 pandemic, people dropped their guard and the second wave of viral infection struck back. If people do not follow social distancing then the spike in cases is apparent. We need to take these precautions at least for one year. India is also vulnerable to this second wave.

Q: If Covid-19 cases continue to rise rapidly, do you think we need another lockdown in areas where volume of cases are very high?

A: A large volume of cases is concentrated in specific areas like hotspots, and in order to maintain things in order, we may need a limited lockdown in these areas. This should be followed by a micro-plan which entails extensive testing of people and also extensive contact tracing of people who have got in touch with positive people. Need to ensure there is no leakage of cases from these areas. People from these areas should not mix with others in non-containment areas. This will aid in containing the outbreak of the virus. People who have developed symptoms should get themselves tested, especially in the containment areas.

Q: With more than 4.5 lakh cases and close to 14,500 deaths, do you think India has reached its peak and a decline in cases is prominent?

A: The cases will continue to increase for some time. The doubling time of cases has also increased. But, the cases will also begin to flatten. Though, it is difficult to give an exact time period in this viral infection, it seems, the growth in cases will flatten in the end of July or beginning of August. A decline will come to this viral infection, but it does not mean that people should drop their guard. As a measure, we need to decrease community participation and citizens should continue to follow social distancing. People should get themselves tested. All these efforts will help in preventing people from contracting this virus. These precautions will also prevent us from the second wave, and we must continue to take precautions. The virus has not gone away, it is still lurking.

Q: India has crossed the 4.5 lakh coronavirus cases so far, although our recovery rate is good, but still 10,000 to 15,000 cases are reported daily. Why do cases continue to spiral, what is the reason?

A: We have to remember a few things -- the bulk of cases are in 10 cities, nearly 70 per cent, and if we take into account cases per million population, the number is not very high, as compared with countries including countries in Europe. Many European countries put together still do not add up to the Indian population. Do not compare India to countries like Italy, Spain etc. We need to focus on hotspots, which contribute to between 70 -80 per cent of cases, and we have to identify cases in these areas at an early stage. The population density is very high in these cities. People in lower socio-economic status are highly vulnerable to the viral infection, as many live together in small spaces and there is a lot of mixing of people happening there. Look at the market places, people are not following social distancing and not wearing masks. In fact, many are in close vicinity of each other.