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Coronavirus Spread By People With No Symptoms ‘Appears To Be Rare’: WHO

The World Health Organisation’s technical lead for coronavirus response noted that what appear to be asymptomatic cases of COVID-19 often turn out to be cases of mild disease

Coronavirus Spread By People With No Symptoms 'Appears To Be Rare': WHO
Highlights
  • Pre-symptomatic refers to the early stages of an illness
  • There can be people who are truly asymptomatic: WHO
  • WHO says that contact tracing symptomatic people is important

Geneva: The spread of COVID-19 by those who do not show symptoms of being infected by the contagion appears to be rare, Maria Van Kerkhove, the World Health Organisation’s technical lead for coronavirus response and head of the emerging diseases, said during a media briefing in Geneva on Monday (local time).”From the data we have, it still seems to be rare that an asymptomatic person actually transmits onward to a secondary individual,” CNN quoted Van Kerkhove as saying on Monday.

Also Read: Community Transmission Of COVID-19 In Delhi, Waiting For Centre To Declare: Health Minister Satyendar Jain

We have a number of reports from countries who are doing very detailed contact tracing. They’re following asymptomatic cases, they’re following contacts and they’re not finding secondary transmission onward. It is very rare — and much of that is not published in the literature We are constantly looking at this data and we’re trying to get more information from countries to truly answer this question. It still appears to be rare that an asymptomatic individual actually transmits onward. she said.

Van Kerkhove also said that what appear to be asymptomatic cases of Covid-19 often turn out to be cases of mild disease. Van Kerkhove said,

When we actually go back and we say how many of them were truly asymptomatic, we find out that many have really mild disease. They’re not quote-unquote Covid symptoms, meaning they may not have developed fever yet, they may not have had a significant cough, or they may not have shortness of breath — but some may have mild disease. Having said that, we do know that there can be people who are truly asymptomatic.

Many people with Covid-19 who may appear to be asymptomatic actually could just have mild or atypical symptoms — or they could be pre-symptomatic, Dr. Manisha Juthani, an infectious diseases specialist and associate professor of medicine and epidemiology at Yale School of Medicine, said in an email to CNN on Monday.

Also Read: Automatic Thermal Scanners Installed At Secunderabad And Hyderabad Railway Stations

Pre-symptomatic refers to the early stages of an illness before symptoms have developed, whereas asymptomatic may refer to having no symptoms throughout the course of infection — a distinction that Van Kerkhove hinted at during Monday’s media briefing.

A study in April found that viral shedding — when people may be able to infect others — could begin two to three days before symptoms appeared. In addition, the US Centers for Disease Control and Prevention estimates in planning scenarios that 40 per cent of coronavirus transmission is occurring before people feel sick.

“These patients weren’t asymptomatic,” Dr. Juthani said. Rather, they were “spreading disease before becoming symptomatic.” She said,

Overall, these findings suggest that if we quarantine and contact trace symptomatic people, we can make a significant dent in the pandemic.

The global number of COVID-19 cases has increased to over 7 million, while the deaths have surged to more than 406,000, according to Johns Hopkins University.

As of Tuesday morning, the overall number of cases stood at 7,097,717, while the death toll increased to 406,402, the University’s Center for Systems Science and Engineering (CSSE) revealed in its latest update.
The US continues with the world’s highest number of confirmed cases and deaths at 1,960,642 and 110,990, respectively.

Also Read: Continuous Improvement In COVID-19 Doubling, Recovery Rate In Uttarakhand: Chief Secretary

World

26,71,08,375Cases
22,77,48,418Active
3,40,89,137Recovered
52,70,820Deaths
Coronavirus has spread to 196 countries. The total confirmed cases worldwide are 26,71,08,375 and 52,70,820 have died; 22,77,48,418 are active cases and 3,40,89,137 have recovered as on December 8, 2021 at 3:48 am.

India

3,46,48,383 6,822Cases
95,0143,402Active
3,40,79,612 10,004Recovered
4,73,757 220Deaths
In India, there are 3,46,48,383 confirmed cases including 4,73,757 deaths. The number of active cases is 95,014 and 3,40,79,612 have recovered as on December 7, 2021 at 2:30 am.

State Details

State Cases Active Recovered Deaths
Maharashtra

66,39,296 518

10,528 298

64,87,593 811

1,41,175 5

Kerala

51,69,198 3,277

41,386 2,724

50,86,044 5,833

41,768 168

Karnataka

29,98,400 301

7,096 65

29,53,067 359

38,237 7

Tamil Nadu

27,31,235 719

8,013 28

26,86,683 737

36,539 10

Andhra Pradesh

20,73,852 122

2,030 92

20,57,369 213

14,453 1

Uttar Pradesh

17,10,485 10

137 3

16,87,437 7

22,911

West Bengal

16,19,722 465

7,590 49

15,92,579 505

19,553 9

Delhi

14,41,398 40

344 26

14,15,955 65

25,099 1

Odisha

10,50,354 105

2,010 144

10,39,921 248

8,423 1

Chhattisgarh

10,07,011 44

337 7

9,93,081 37

13,593

Rajasthan

9,54,920 29

221 0

9,45,743 28

8,956 1

Gujarat

8,27,745 38

350 1

8,17,300 37

10,095

Madhya Pradesh

7,93,258 17

137 4

7,82,593 13

10,528

Haryana

7,71,851 32

203 18

7,61,594 14

10,054

Bihar

7,26,244 7

28 2

7,14,126 5

12,090

Telangana

6,77,138 195

3,810 23

6,69,328 171

4,000 1

Assam

6,17,758 182

2,544 54

6,09,088 122

6,126 6

Punjab

6,03,509 21

333 28

5,86,565 46

16,611 3

Jharkhand

3,49,352 10

131 4

3,44,080 6

5,141

Uttarakhand

3,44,364 11

172 2

3,36,781 13

7,411

Jammu And Kashmir

3,37,915 108

1,661 45

3,31,771 151

4,483 2

Himachal Pradesh

2,27,630 112

776 21

2,23,001 90

3,853 1

Goa

1,79,209 35

413 1

1,75,409 34

3,387

Mizoram

1,36,784 330

3,120 19

1,33,156 310

508 1

Puducherry

1,29,093 8

250 30

1,26,968 38

1,875

Manipur

1,25,389 29

341 12

1,23,063 38

1,985 3

Tripura

84,866 8

93 3

83,948 5

825

Meghalaya

84,599 16

246 2

82,878 14

1,475

Chandigarh

65,500 12

62 4

64,618 8

820

Arunachal Pradesh

55,294 1

35 1

54,979 2

280

Sikkim

32,374 5

214 1

31,755 6

405

Nagaland

32,140 4

120 3

31,321 1

699

Ladakh

21,723 9

270 25

21,238 34

215

Dadra And Nagar Haveli

10,683

0 0

10,679

4

Lakshadweep

10,404

10 0

10,343

51

Andaman And Nicobar Islands

7,690 2

3 1

7,558 3

129

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