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Containment Measures, Immunity, Fewer Outside Patients Behind Fall In COVID Cases In Delhi: Experts

The slide in the number of fresh COVID-19 cases, deaths and positivity rate in Delhi can be attributed to aggressive containment measures, a segment of population achieving immunity and fewer outside patients, experts said on Friday (January 22)

Containment Measures, Immunity, Fewer Outside Patients Behind Fall In COVID Cases In Delhi: Experts
Highlights
  • More than one crore tests have been conducted in Delhi so far
  • On an average, around 60,000 to 70,000 tests are conducted daily
  • People having mild symptoms do not come forward for testing: Doctor

New Delhi: The slide in the number of fresh COVID-19 cases, deaths and positivity rate in Delhi can be attributed to aggressive containment measures, a segment of population achieving immunity and fewer outside patients, experts said on Friday (January 22). Some of them, however, noted that it is hard to “ascertain the actual position” as many people having mild symptoms have been skipping testing. Suresh Kumar, the medical director of Lok Nayak Jai Prakash Narayan Hospital, Delhi’s largest health facility, said authorities have been able to contain the coronavirus spread through aggressive testing and contact tracing. “More than one crore tests have been conducted in Delhi so far. On an average, around 60,000 to 70,000 tests are conducted daily. The Delhi government should be credited for its micro-management and planning,” he said.

Also Read: Study Sheds More Light On Role Played By Immune System’s T Cells Against Coronavirus

The cumulative number of tests in Delhi crossed the one crore mark on January 20. Over 14 lakh tests have been conducted in the city between January 1 and January 21 — 66,683 tests a day on an average. However, Mr. Kumar said that whether Delhi has achieved herd immunity will be clear once the results of the latest serological survey arrive.

According to Dr. Ajit Jain, the nodal officer for COVID-19 at Rajiv Gandhi Super Specialty Hospital, Delhi may have achieved herd immunity already.

The serological-survey conducted in August found that 29.1 per cent of the city’s residents have developed antibodies against COVID-19. Besides, 35 per cent of the population is aged below 18 and is almost immune to the disease, he said.

Exposure to viruses causing common cold can also provide partial immunity against the coronavirus. This is called “cross-immunity”. Around five per cent of Delhi’s population is immune to COVID-19 due to this factor, Jain said. Another reason is that Delhi has become a “natural containment zone” due to the farmers’ agitation on its border points, he said. Earlier, a large number of COVID-19 patients from neighbouring states were coming to Delhi for treatment.

Also Read: Russian COVID-19 Vaccine ‘Sputnik V’ Under Phase 3 Trials In India To Cost Less Than $10 Per Dose

This number has reduced to a large extent due to the difficulty in travel due to the ongoing protest, Dr. Jain said. Around 30 per cent of the coronavirus patients admitted to Delhi hospitals in August last year were from other states, according to government data.

Non-residents also accounted for more than half the number of deaths reported in the national capital between August 3 and August 28 last year, it showed. Dr. Suneela Garg, director and professor in the department of community medicine at Maulana Azad Medical College, said a segment of Delhi’s population achieving immunity could be one of the reasons behind the declining trend in new COVID-19 cases and deaths.

Also, in many cases, people having mild symptoms do not come forward for testing. They go for isolation, she said.

Former director general of Indian Council of Medical Research (ICMR) N K Ganguly echoed similar views.

It is hard to ascertain the actual position as many people have not been turning up for testing if they have mild symptoms. They now know what precautions have to be taken, he said.

Also Read: Phase 1 Trial Results Show Covaxin Has Tolerable Safety, Enhanced Immunity: Lancet Study

It is time the government asked experts to conduct “real-time” surveys to know the true picture. On an average, Delhi has recorded 348 cases a day in January so far. Authorities reported 399 cases on January 10; 306 on January 11; 386 on January 12; 357 on January 13; 340 on January 14; 295 on January 15; 299 on January 16; 246 on January 17; and 161 on January 18, the lowest since April 30 last year. The number of daily cases stood at 231 on Tuesday, 228 on Wednesday and 227 on Thursday.

The city registered 225 deaths between January 1 and January 21 — 10 fatalities a day on an average. The number of deaths was 12 on January 10; 13 on January 11; 16 on January 12; 11 on January 13; 4 on January 14; 10 on January 15; 6 on January 16; 8 each on January 17 and January 18;10 each on January 19 and 20 and 8 on January 21. The positivity rate has also come down from 1.29 on December 21 to 0.28 percent on January 21. Delhi Health Minister Satyendar Jain had said on Sunday, “The positivity rate has remained below 0.5 percent for the last few days. We can comfortably say that the third wave is on the wane.” “Cases have decreased. Still, I want to appeal to people to take precautions and use masks,” he had said.

Also Read: Vaccine Hesitancy: What It Means And How We Can Tackle It, Experts Explain

(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)

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World

24,20,23,922Cases
20,36,06,535Active
3,34,95,808Recovered
49,21,579Deaths
Coronavirus has spread to 195 countries. The total confirmed cases worldwide are 24,20,23,922 and 49,21,579 have died; 20,36,06,535 are active cases and 3,34,95,808 have recovered as on October 21, 2021 at 4:33 am.

India

3,41,27,450 18,454Cases
1,78,831 733Active
3,34,95,808 17,561Recovered
4,52,811 160Deaths
In India, there are 3,41,27,450 confirmed cases including 4,52,811 deaths. The number of active cases is 1,78,831 and 3,34,95,808 have recovered as on October 21, 2021 at 2:30 am.

State Details

State Cases Active Recovered Deaths
Maharashtra

65,96,645 1,825

29,333 1,075

64,27,426 2,879

1,39,886 21

Kerala

48,79,790 11,150

83,333 2,476

47,69,373 8,592

27,084 82

Karnataka

29,84,484 462

9,103 26

29,37,405 479

37,976 9

Tamil Nadu

26,90,633 1,170

14,058 268

26,40,627 1,418

35,948 20

Andhra Pradesh

20,61,810 523

5,566 88

20,41,924 608

14,320 3

Uttar Pradesh

17,10,058 11

112 6

16,87,048 17

22,898

West Bengal

15,82,813 867

7,491 63

15,56,315 795

19,007 9

Delhi

14,39,466 25

310 12

14,14,066 37

25,090

Odisha

10,36,532 559

4,387 106

10,23,849 451

8,296 2

Chhattisgarh

10,05,735 34

185 3

9,91,979 36

13,571 1

Rajasthan

9,54,393 1

38 0

9,45,401 1

8,954

Gujarat

8,26,340 14

176 9

8,16,077 22

10,087 1

Madhya Pradesh

7,92,709 9

82 3

7,82,104 6

10,523

Haryana

7,71,116 15

133 7

7,60,934 8

10,049

Bihar

7,26,036 3

30 12

7,16,345 15

9,661

Telangana

6,69,556 191

3,968 28

6,61,646 162

3,942 1

Assam

6,07,427 308

3,610 25

5,97,859 282

5,958 1

Punjab

6,02,113 32

232 16

5,85,331 15

16,550 1

Jharkhand

3,48,486 25

142 14

3,43,209 11

5,135

Uttarakhand

3,43,773 8

176 1

3,36,199 6

7,398 1

Jammu And Kashmir

3,31,299 78

800 3

3,26,070 80

4,429 1

Himachal Pradesh

2,21,936 110

1,394 46

2,16,815 64

3,727

Goa

1,77,706 47

597 23

1,73,755 70

3,354

Puducherry

1,27,521 42

461 29

1,25,208 71

1,852

Manipur

1,22,970 71

1,360 2

1,19,706 66

1,904 3

Mizoram

1,15,207 741

10,263 505

1,04,548 1,243

396 3

Tripura

84,351 2

95 7

83,440 9

816

Meghalaya

83,158 79

761 21

80,958 58

1,439

Chandigarh

65,312 2

24 1

64,468 3

820

Arunachal Pradesh

55,043 12

138 7

54,625 19

280

Sikkim

31,800 17

175 6

31,232 22

393 1

Nagaland

31,659 18

255 8

30,728 10

676

Ladakh

20,886 3

34 0

20,644 3

208

Dadra And Nagar Haveli

10,676

2 2

10,670 2

4

Lakshadweep

10,365

0 0

10,314

51

Andaman And Nicobar Islands

7,646

7 1

7,510 1

129

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