Early leads for BJP as counting begins for Uttar Pradesh civic polls

New Delhi, Apr 24: The trajectory of COVID-19 cases could have plateaued and might even fall for some weeks after the lockdown is lifted but India is likely to see a second wave in late July or August with a surge in the number of cases during the monsoon, say scientists.

The timing of the peak will depend on how India is able to control physical distancing and on the level of infection spreads after restrictions are relaxed, they said.

It looks apparent that the trajectory of daily new cases has reached a plateau and eventually it will take a downward fall, maybe for some weeks or even months, Samit Bhattacharya, associate professor at the Department of Mathematics, Shiv Nadar University, said.

Still, we may get a surge of new cases of the same coronavirus and this will be considered a second wave, Bhattacharya explained.

The second epidemic may come back in late July or August in the monsoon, although the peak timing will depend on how we control social distancing during that time, he said.

Rajesh Sundaresan, professor at Bengaluru's Indian Institute of Science (IISc), agreed.

“Once we return to normal activity levels, there is a chance that infection may begin to rise again. China is seeing this to some extent post easing of some restrictions on travel,” Sundaresan, corresponding author of a working paper by researchers at IISc and the Tata Institute of Fundamental Research (TIFR) in Mumbai, said.

On March 25, when the number of coronavirus cases was 618 with 13 deaths, the government announced a nationwide lockdown that was later extended to May 3.

On Friday, the death toll due to COVID-19 rose to 718 and the number of cases to 23,077, according to the Union Health Ministry.

In good news, officials said this week that the doubling rate of cases has slowed down in the period, going from 3.4 days before lockdown to 7.5 days, with 18 states doing better than the national average. The recovery rate has also almost doubled in the last 10 days.

"Looking at the new cases in the past few days, it seems the growth of new daily infection is much slower than earlier. This apparently indicates that we might have reached at the plateau of the growth curve, Bhattacharya said.

He noted that recent studies in China and Europe observed that the infection might relapse in those people who have already recovered from earlier phases.

So, there is no evidence that the earlier infection may help acquire immunity against the second infection. And in that way, the entire population may be vulnerable to the second wave to some extent, said the scientist.

In their study unveiled this week, IISc and TIFR researchers analysed the impact of strategies such as case isolation, home quarantine, social distancing and various post-lockdown restrictions on COVID-19 that might remain in force for some time.

The study modelled on Bengaluru and Mumbai suggests the infection is likely to have a second wave and the public health threat will remain, unless steps are taken to aggressively trace, localise, isolate the cases, and prevent influx of new infections.

The new levels and the peaking times for healthcare demand depend on the levels of infection spreads in each city at the time of relaxation of restrictions, they said.

The lockdown is currently upon us. It has given us valuable time. Let us test, trace, quarantine, isolate, practice better hygiene, search for a vaccine, etc. We should do these anyway, and these are being done. When and how to lift the lockdown is going to be a difficult decision to make, said Sundaresan.

It's clear that it's going to be phased. What our team is focusing on is to come up with tools to help the decision makers assess the public health impact of various choices, he said.

According to the experts, infectious diseases spread via contact between infectious and susceptible people. In the absence of any control measures, an outbreak will grow as long as the average number of people infected by each infectious person is more than one.

Once enough people are immune there will be fewer people susceptible to the infection and the outbreak will die.

However, when an outbreak is brought under control by social distancing and other interventions, it is possible only a small proportion of the population will have been infected and gained immunity, they said.

This means enough susceptible people may remain to fuel a second wave if controls are relaxed and infection is reintroduced.

Until the vaccine comes on the market, we have to remain alert Once sporadic cases occur here and there in the country, we immediately need to implement quarantine or social distancing locally for the people in that region, and also need to perform tests to identify positive cases irrespective of showing symptoms, Bhattacharya explained.

Note that these monsoon months are also flu season in many places of India. So, we should not ignore the early signs of the flu symptoms. Irrespective of symptoms, we need to increase tests in the hotspots to identify people and contain the surge, he said.

Sundaresan added that the timeline for a second wave will depend on a lot of circumstances which may change as the time passes.

Significant testing may have been underway, there may be behavioural changes with people becoming more careful about their hygiene, wearing masks may become more common, etc. All these responses may help restrict the second wave, he said.

A study published in The Lancet journal earlier this month modelled the potential adverse consequences of premature relaxation of interventions, and found it might lead to a second wave of infections.

The finding is critical to governments globally, because it warns against premature relaxation of strict interventions, the researchers said.

While interventions to control the spread of SARS-CoV-2 are in place, countries will need to work toward returning to normalcy; thus, knowledge of the effect of each intervention is urgently required, they said in the study.

According to a recent analysis by the Harvard Chan School of Public Health, the best strategy to ease the critical care burden and loss of life from COVID-19 might be on-again, off-again social distancing.

In the absence of such interventions, surveillance and intermittent distancing may need to be maintained into 2022, which would present a substantial social and economic burden, the researchers wrote.p

Wayanad, May 14: Coronavirus scare has gripped the police in the district as around 70 personnel, including their chief, have gone on quarantine as a precautionary measure after three colleagues tested positive for the pathogen.

A day after three personnel of Mananthavady police station tested positive for COVID-19, District Superintendent of Police R Illango said on Thursday he and others decided to quarantine themselves as they had been in contact with some other colleagues from the station. Twenty four personnel, including a Deputy Superintendent of Police, have gone on quarantine after giving their samples for testing three days ago as a measure of abundant caution after a man questioned in Manathavady police station in connection with a case tested positive for the virus on May 9.

Of the 24, results of 18 have been received so far and three personnel tested positive on Wednesday, following which the station has been disinfected and virtually closed and contact tracing underway.

On Wednesday, the SP and some other police personnel had interacted with the DySp for close to an hour at a checkpost following which over 40 police personnel have voluntarily decided to go on quarantine.

"We are actually being over cautious. I have spoken to all the policemen. We know we are in the high-risk job. We are concerned that we might spread it to family members, public, or colleagues. So we want to maintain extreme caution", Illango, who is on home quarantine, told PTI.

With the three personnel testing positive in the state, Kerala Director General of Police Loknath Behera said the force should take all necessary precautions and fearlessly go ahead in the fight against the virus.

The three from Manathavady are believed to have contracted the virus after they came in contact with a man who was called to the station in connection with a case on April 28 and May 2. He later tested positive for COVID-19 on May 9. This man is suspected to be a contact of a truck driver, who has turned out to be a super spreader after returning to the district from Chennai's Koyambedu market, a hotspot, and had infected at least 10 others, including his wife, mother and grandchild.

The Mananthavady police station has been disinfected with the help of the Health Department and Fire Force personnel. Computers and wireless equipment have been shifted to other police buildings and the station's charge has been temporarily given to Vallamunda Station House Officer, a release from the DGP's office said. Two police personnel wearing personal protection equipment (PPE) kits would be at the station to take care of necessary work and a health worker posted to help them, it said.

Police personnel from other stations have been mobilised to meet any shortage, Illangosaid adding they need not come to the police station but directly go to the duty points. Meanwhile, the district health authorities said the standard operating procedure (SOP) has been initiated as soon as the test results of the three came by Wednesday noon. Accordingly, all personnel who were on duty were sent to nearby lodges and resorts for quarantine.

One of the policemen who tested positive had been to Sulthan Bathery police station and Muthanga area, where the DySP and few other officials were also present. This is being seen as a lapse on the part of the police department. However, police sources said none had directed the 24 personnel, whose samples were collected on Monday, to go on quarantine or abstain from duty. The health department is trying to map out the contact list of the police personnel to contain further spread from their direct and secondary contacts.

According to police sources, the Sulthan Bathery Circle Inspector, two sub-inspectors and about 18 police personnel of the Mananthavady police station are among those who have been put on quarantine. As part of containment measures, the courts in Sulthan Bathery and Mananthavady have been closed on Thursday, officials said. 

New Delhi, Jun 24: Union Civil Aviation Minister Hardeep Singh Puri on Tuesday said that nearly 1,25,000 Indians have returned from different countries under the Vande Bharat Mission.

He informed that 6,037 people returned to India from overseas on June 23.

"Vande Bharat continues to be a mission of hope and happiness for stranded and distressed Indians around the world. So far, nearly 125K Indians have come back on these evacuation flights and nearly 43K have flown out of India. Today (on Tuesday) 6,037 people returned from different countries," Puri said in a tweet.

As many as 2,50,087 Indian nationals stranded abroad have been repatriated since the beginning of Vande Bharat Mission last month, the Ministry of External Affairs (MEA) said last week.

The Vande Bharat Mission, which started from May 7 to evacuate Indians stranded abroad due to coronavirus pandemic, is in its third phase.
The recent phase commenced on June 11.

Under the third phase, India would have 550 flights including 191 feeder flights.