FrontLine

The geographic spread

- BY T.K. RAJALAKSHM­I

Despite the government’s unfounded optimism, the southward movement

of the virus and the growing absolute numbers imply that India has quite a distance to cover before it can breathe easy in the ongoing fight

against the pandemic.

ON JULY 9, WHEN COVID19 MONITORING sites showed a singleday spike of 25,790 cases in India, the biggest so far, the government continued to maintain that there was no “community transmissi­on”.

On the same day, at a Group of Ministers meeting chaired by Union Health Minister Harsh Vardhan, members were told that India had one of the lowest number of cases and deaths per million when compared with the ve worstaffec­ted countries. However, no comparison­s were drawn with the world’s most populous nation, China, which had controlled the spread of the virus rather effectivel­y.

“It would perhaps be not fair to compare India to other countries. In terms of absolute numbers, India had 195.5 cases per million population,” the government said in a press release.

However, a Health Ministry official, quoting the World Health Organisati­on’s (WHO) situation report, told the media that there were 538 cases per million in the country.

At the press brieng on July 9, held almost a month after the previous one, Ministry officials presented a picture of optimism. India, they said, was not in the community transmissi­on stage and added that there were localised outbreaks in some areas. This was borne out by the data that showed that only 49 of the country’s 733 districts had reported cases.

The officials also said that it was possible to trace and

track contacts of active cases within 72 hours, and therefore, it was erroneous to talk of community transmissi­on. They added that the WHO had not issued any standardis­ed denition of local or community transmissi­on.

UNFOUNDED OPTIMISM

Senior Health Ministry officials appeared optimistic that despite being the second most populous country in the world, India’s management of the COVID19 situation was satisfacto­ry and that it had done “relatively well”.

The number of cases per million population as per the WHO situation report was 538, which a Health Ministry official said was among the lowest in the world. The cases to population ratio from the Americas and Europe was much higher, and in some countries, it was 1617 times the Indian ratio.

The death rate in India was only 15 per million of the population, whereas the rate in some countries was several times that gure.

The officials said that as of July 9, 4,76,000 patients had recovered and there were 2,69,789 active cases. The low caseload had prevented the public health systems and infrastruc­ture from getting unduly burdened, they added.

The rate of recovery was 1.75 times that of active cases of infection. The recovery rate rise was appreciabl­e, said Rajesh Bhushan, Secretary in the Health Ministry, and shared a graph that showed the recovery percentage as 62 per cent now. However, there was no reference to the singleday spike of more than 25,000 cases that day.

The daily testing rate in India, 2.67 lakh on an average, had denitely gone up. But it had increased in the process of chasing a growing spread of the infection. The increase in the present testing capacity had made it possible to conrms a growing number of cases. This is hardly an achievemen­t.

Instead of a rapid ramping up of testing in order to get ahead of the infection by quickly identifyin­g the infected and isolating them, which should have been done when the country was under lockdown, the country’s strategy was to chase the infection, and not preempting it.

The strategy preempting infection adopted by countries such as South Korea succeeded in controllin­g the spread. A faster rate of testing in the initial stages of the outbreak in that country meant that fewer tests were required. In contrast, a slow rate of testing in India allowed the infection to spread and go out of control.

Within India, eight States—maharashtr­a, Tamil Nadu, Delhi, Karnataka, Telangana, Andhra Pradesh, Uttar Pradesh and Gujarat—accounted for 90 per cent of the active caseload, while six States—maharashtr­a, Delhi, Gujarat, Tamil Nadu, Uttar Pradesh and West Bengal—accounted for 86 per cent of the COVID19 deaths. Some 32 districts accounted for 80 per cent of the deaths.

The authoritie­s have not given any official epidemiolo­gical explanatio­n for these trends. Rather, the government continues to adopt the same selfcongra­tulatory demeanour that has characteri­sed its approach from the beginning of the outbreak.

There was no epidemiolo­gist or senior scientist at the press brieng of July 9, which was surprising given the high count of cases every day and the southward movement of the pandemic.

Jacob John, Professor of Community Medicine and Epidemiolo­gy at the Christian Medical College, Vellore, told Frontline that the reporting of the cases depended on the quantum and appropriat­eness of testing and the phase of the pandemic.

“The patterns that are visible need not reect the reality. We are still early in the exponentia­l phase of the pandemic in our country and the south being more connected is seeing now the second level of spread after the metros,” he said, adding that the worst was yet to come.

(In the context of the United States, the top infectious diseases expert Dr Anthony Fauci has warned the U.S. President against having a false sense of complacenc­y over low death rates.)

Despite the bluster of optimism, it was clear that deep down the Union government was aware that the numbers indicated something more serious. Hence, its directions to continue with strict containmen­t measures, surveillan­ce, demarcatio­n of containmen­t zones, strict perimeter control, intensive contact tracing, housetohou­se search/surveillan­ce and identication of buffer zones to identify new cases.

STEADY TRENDS

India’s position as a country with the third largest number of conrmed COVID19 cases in the world and the largest number of cases and deaths in Asia has been marked by a combinatio­n of remarkably steady trends that are not always seen in other parts of the world.

The proportion of active or currently infected cases to the cumulative total of conrmed cases has been coming down over time in India. Since the fatality rate was not high, this decline reected primarily the growing numbers of those who have recovered. Their numbers now far

exceed the number of active cases—4,95,512 recovered versus 2,76,685 active cases and 21,604 deaths as per official data on July 10.

Some 15 per cent of Covidrelat­ed deaths were in the 1444 years age group; 32 per cent of the deaths were in the 4559 years age group (15 per cent of the population); 39 per cent of deaths were in the 6074 years age group (8 per cent of the population).

People aged 75 years and above, who belong to the age group that comprised 2 per cent of the population, accounted for 14 per cent of all COVID19 deaths.

Viewed in isolation, high absolute numbers would be considered a good sign because the pandemic is deemed to be have come to an end, when there are no longer any active cases and all those infected have either died or recovered.

With the proportion of active cases now having come down to around 35 per cent from the near 100 per cent level it was at the beginning of the pandemic, and deaths still being under 3 per cent of all cases, it seemed that the country was approachin­g the end without having paid a very heavy price in terms of lives lost to the COVID19 infection.

Yet, the absolute numbers of the active cases have been increasing day by day and the curve has not yet started moving downwards indicating that the pandemic is coming to an end. The absolute numbers are relevant because they determine the extent of the caseload on the health system, a load the government claimed it has prevented.

In this regard, India’s experience has not only been different from that of countries of the European Union and east Asia, where the downward movement began several months ago, but also from other countries that had a large number of cases, such as Russia, where the number of active cases began declining mid June. India is still climbing the hill and is far from being over it.

MIXED PICTURE

The growth in the number of new infections every day presents a mixed picture. Over the course of the epidemic, there has been a downward trend in the rate of growth of conrmed cases per day, as a result of which an increasing trend in the doubling time has also been visible.

This has been the main reason for the decline in the proportion of active cases, since the active cases on any day are mainly those added to the total tally relatively recently, typically those that tested positive in the previous two weeks or so.

This, again, would appear to be a good sign as the end of the epidemic requires this daily growth rate to become zero or near zero. In India, the daily growth rate is currently around 3.5 per cent, compared with the 810 per cent level seen in mid April, when the rst threeweek lockdown ended.

Despite this, however, the absolute number of new cases reported every day has also steadily increased day by day and has kept hitting a new high every second or

third day. For the pandemic to end, the absolute number of cases must decline for several days successive­ly. But that has not happened.

There is no evidence that India is past the peak. The decline in the daily rate of growth was not fast enough to achieve it; also, the rate does not show any further reduction.

India’s situation was not even like the U.S., where a decline in the number of daily cases was under way; things took a turn for the worse only when the country opened up and started easing restrictio­ns.

The experience of the U.S. and countries that have managed to control the pandemic suggested that even after the peak was crossed, it would take a long time to reach the point where it was possible to be sure that things were not going to get out of hand again. Controllin­g the COVID19 pandemic still remains a long haul for India.

India’s tryst with the coronaviru­s can thus be described as being marked by a peculiar combinatio­n. On one hand, there is a sustained failure to control the pandemic, even three and a half months after the rst round of drastic containmen­t measures were initiated. On the other, there are signs that at no stage did India experience the kind of sudden explosion of the epidemic as seen in some other countries.

SHIFTING GEOGRAPHY

Lurking behind this big picture is perhaps a story of the shifting geography of the infection marked by an increase in the spread of potential hotspots, reecting a moderation in some part of the country being accompanie­d by accelerati­on elsewhere. And complete control has not ben achieved.

From the beginning of Lockdown 1.0 to date, 7580 per cent of the total number of conrmed cases were accounted for by a cluster of nine States in western, southern and central India: Maharashtr­a, Kerala, Tamil Nadu, Andhra Pradesh, Telangana, Gujarat, Madhya Pradesh, Rajasthan and Delhi. However, the timing and extent of their contributi­on to the growth in the national totals has been far from uniform.

At the beginning of the epidemic, Maharashtr­a and Kerala laccounted for the bulk of the conrmed cases . However, these States quickly moved in completely different directions: while Maharashtr­a saw an explosion in numbers and became the epicentre of the growth of the infection in the country, Kerala succeeded in in taming the infection to a large extent.

Several other States soon crossed Kerala in the number of cases, and the number of active cases in that State was as low as 16 in early May, when the return of expatriate­s began.

Kerala saw a surge in imported cases after that, which has continued since, but the State still accounts for less than 1 per cent of the total number of conrmed cases in India. In contrast, Maharashtr­a’s share in the nation’s tally of fresh cases every day remains the highest despite the fact that the average growth of daily cases in the State has slowed down considerab­ly and has been lower than the rate in the rest of the country since the end of May. This is chiey because of the lasting effects of the earlier surge.

SURGE POST-JUNE

Cases surged in Delhi and Tamil Nadu early on during Lockdown 1.0, a surge that was attributed mainly to the Tablighi Jamaat event in Nizamuddin in Delhi. However, this specic surge soon subsided, and Gujarat, Rajasthan and Madhya Pradesh replaced these two States to drive up the country’s infection rate for most of April.

In May, however, there was another switching of positions between these two groups of States as Delhi and Tamil Nadu saw a fresh surge while Gujarat, Rajasthan and Madhya Pradesh saw an easing despite the lifting of lockdown restrictio­ns.

This surge in Delhi and Tamil Nadu got intensied from the end of May when both States eased lockdown restrictio­ns. During June, the combined share of these two States in the country’s total number of conrmed cases climbed rapidly to match that of Maharashtr­a, whose numbers had been slowly declining over the same period. The surge in Delhi was also reected in neighbouri­ng regions, most notably Haryana, which earlier appeared to have brought the infection under control. A rise in numbers in the east after the return of migrant workers added to the overall growth. This region, except West Bengal, had seen very few cases until then.

Andhra Pradesh, Telangana and Karnataka appeared to have things under control and along with Kerala. Their combined share in the total number of conrmed cases began to steadily decline and stay below 5 per cent until the last week of June, when they started experienci­ng an accelerati­on of the infection. While Tamil Nadu’s daily numbers were higher because of the base created by the past growth, the rate of increase in these three States has been far higher.

States such as Gujarat, Madhya Pradesh and Rajasthan continue to add to the increasing numbers although their share in the overall growth of numbers has been coming down.

This leads to the question, Could the objective of taming the epidemic in India have been better achieved and with much less pain by a strategy of more targeted lockdowns spaced out in time, combined with a “trace and test” procedure?

The government’s strategy to impose a nationwide lockdown, when the number of cases and the regional spread was low, might have been counterpro­ductive and played a role in creating conditions that accelerate­d the spread.

The Centre’s twin steps of overuse of the drastic containmen­t measure, casting the net wide, and enhancing testing and ramping up the public health system capacity right at the beginning are probably awed. It has resulted in a situation where both these steps are more difficult and expensive at a time when they are needed the most, given the country’s limited resources. m

 ??  ?? RAJESH BHUSHAN, Officer on Special Duty with the Health Ministry, addressing a media briefing on the COVID-19 situation in New Delhi on July 9.
RAJESH BHUSHAN, Officer on Special Duty with the Health Ministry, addressing a media briefing on the COVID-19 situation in New Delhi on July 9.
 ??  ?? DISINFECTI­ON work in Thiruvanan­thapuram in the wake of a spurt in COVID-19 cases, on July 3.
DISINFECTI­ON work in Thiruvanan­thapuram in the wake of a spurt in COVID-19 cases, on July 3.
 ??  ?? UNION HEALTH MINISTER Delhi on July 10.
Dr Harsh Vardhan in New
UNION HEALTH MINISTER Delhi on July 10. Dr Harsh Vardhan in New
 ??  ??
 ??  ?? AT A ‘FEVER CLINIC ‘in Chennai on June 29. The surge in the number of cases in Tamil Nadu intensifie­d from the end of May after the State eased lockdown restrictio­ns.
AT A ‘FEVER CLINIC ‘in Chennai on June 29. The surge in the number of cases in Tamil Nadu intensifie­d from the end of May after the State eased lockdown restrictio­ns.

Newspapers in English

Newspapers from India