Not in a position to fight BJP alone; will join hands with others in LS polls: Karnataka Cong chief

Bengaluru, Mar 19: To better enforce social distancing and prevent further spread of Covid-19, the Karnataka health and family welfare department on Wednesday said it will "stamp the back of the palm" of international passengers advised to be on home quarantine, along with the date they are allowed to get out of home. The stamping process began at 12am Thursday.

Pankaj Kumar Pandey, commissioner, health and family welfare, said: "It is noted that a few passengers under home quarantine are not following the instructions. Therefore, it has been decided to stamp the back of the palm of their left hand with a specially designed stamp which will indicate the last day of quarantine."

He said the special stamp will use an indelible ink and "airports in Karnataka have been instructed to follow this without fail". On average, about 3,000 people are arriving in Bengaluru on international flights every day.

The department said social distancing is the only known method of combating the spread of Covid-19 and added, "International passengers are segregated as symptomatic and asymptomatic."

High-risk flyers kept at mass quarantine unit

The symptomatic passengers (Group-A) are taken to designated hospitals; asymptomatic ones, depending on the port of origin, are taken to the quarantine centre or permitted to go on home quarantine.

At the mass quarantine centre, the asymptomatic passengers are divided into moderate-risk (Group-B) and high-risk (Group-C) categories.

“The high-risk passengers are kept at a mass quarantine centre for medical observation. The moderate-risk passengers are being sent for home quarantine where they need to spend 14 days,” the statement added.

Pandey said: “International passengers changing flights within the country cannot be stopped. Ideally, they should be stamped at the first port of entry when they arrive from a foreign country which is not happening.” He said this issue will be brought to the notice of the Directorate-General of Civil Aviation.

Mangaluru, May 23: In order to ensure that students do not miss out on their studies due to educational institutions being shut owing to the coronavirus lockdown, Dakshina Kannada Pre-university College Principles Association (DKPUCPA) is conducting online classes on YouTube for pre-university students.

The online lessons are shot by lecturers at St Aloysius College and the lectures are then uploaded on YouTube enabling students to watch them online.

"The whole world is currently in a crucial situation because of COVID-19, and because of the lockdown, all are forced to stay indoors. Usually, we used to conduct lectures in a class full of students, but now it is a new experience that we are providing the same information to students in their absence," Rajaram Rao, a lecturer said while speaking to news agency.

He said at present these classes are being conducted for second year pre-university students.

If any student has a doubt on any concept, he said they can contact the teachers. "At present, students also are getting information about the teachers who have uploaded the videos. All the information about the teachers is already being uploaded on the system so that they can contact the teacher," he said.

Dhanya, a student, hailed the DKPUCPA for the setting up of the online classes despite the prevailing situation.

"The teachers who have taught in these classes have taught very well, as if they are teaching right in front of us. It has been very useful for me during this time," she said.

The nationwide lockdown imposed to combat the threat posed by the coronavirus pandemic has been extended to May 31.

The deadly coronavirus that entered India while there was still nip in the air has beaten rising mercury, humid conditions, unique Indian genome and has entered monsoon season with more potency as fresh cases are only breaking all records in the country.

India recorded a single-day spike of record 24,850 new coronavirus cases on Sunday, taking its total tally to 6.73 lakh corona-positive cases.

Top Indian microbiologists were hopeful in March that after the 21-day lockdown, as summer approaches, the rise in temperature would play an important role in preventing the drastic spread of COVID-19 virus in India.

Several virologists hinted that by June this year, the impact of COVID-19 would be less than what it appeared in March-April.

The claims have fallen flat as the virus is mutating fast, becoming more potent than ever.

According to experts, the novel coronavirus is a new virus whose seasonality and response to hot humid weather was never fully understood.

"The theory was based on the fact that high temperatures can kill the virus as in sterilisation techniques used in healthcare. But these are controlled environment conditions. There are many other factors besides temperature, humidity which influence the transmission rate among humans," Dr Anu Gupta, Head, Microbiologist and Infection Control, Fortis Escorts Heart Institute, told IANS.

There is no built-up immunity to COVID-19 in humans.

"Also, asymptomatic people might be passing it to many others unknowingly. New viruses tend not to follow the seasonal trend in their first year," Gupta emphasized.

Globally, as several countries are now experiencing hot weather, the World Health Organization (WHO) reported a record hike in the number of coronavirus cases, with the total rising by 2,12,326 in 24 hours in the highest single-day increase since COVID-19 broke out.

So far over 11 million people worldwide have tested positive for the disease which has led to over 5,25,000 deaths, according to data from Johns Hopkins University. The US remained the worst-hit country with over 28 lakh cases, followed by Brazil with 15.8 lakh.

According to Sandeep Nayar, Senior Consultant and HOD, Respiratory Medicine, Allergy & Sleep Disorders, BLK Super Speciality Hospital in New Delhi, whether temperature plays a role in COVID-19 infection is highly debated.

One school of thought said in the tropical regions of South Asia, the virus might not thrive longer.

"On the other hand, another school of thought has found that novel Coronavirus can survive in a hot and humid environment and tropical climate does not make a difference to the virus. According to them, this is what distinguishes the novel coronavirus from other common viruses, which usually wane in hot weather," stressed Nayar.

Not much has been studied in the past and no definite treatment or vaccine is available to date.

"Every day, new properties and manifestation of the disease come up. As of now, the only way to prevent this monster is by taking appropriate precautions. Hand hygiene, social distancing, cough etiquette and face masks definitely reduce spread of COVID-19 infection," Nayar told IANS.

Not just top Indian health experts, even Indian-American scientists had this theory in mind that sunshine and summer may ebb the spread of the coronavirus.

Ravi Godse, Director of Discharge Planning, UPMC Shadyside Pennsylvania in the US told IANS in April: "In the summer, the humidity can go up as well, meaning more water drops in the air. If the air is saturated with water and somebody sneezes virus droplets into such air, it is likely that the droplets will fall to the ground quicker, making them less infectious. So the short answer is yes, summer/sunshine could be bettera.

According to Dr Puneet Khanna, Head of Respiratory Medicine and Pulmonology, Manipal Hospital, Delhi, COVID-19 death rates are not too different in tropical countries but since the disease affected them late it was yet to show its peak in these areas.

"The virus can survive well in hot and humid countries and this is proven now," he stressed.