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COVID-19: IIT Bhubaneswar Study Confirms Effectiveness Of Face Mask, Social Distancing Norms

The study confirmed that without protectives measures like a face mask, the smaller droplets expelled during a sneeze can travel up to 25ft in a stagnant environment. It confirms and also recommends a social distancing of 6ft from all orientations to prevent transmission of COVID- 19

COVID-19: IIT Bhubaneswar Study Confirms Effectiveness Of Face Mask, Social Distancing Norms
Highlights
  • The study recommends using elbow even after wearing a mask while coughing
  • The study aims to help improve understanding of smaller droplets: Expert
  • It aims to motivate researchers to bring innovation to face mask design

Bhubaneswar: Highlighting the importance of social distancing to contain the spread of COVID-19, a new study at IIT Bhubaneswar has found that small droplets released during a sneeze can travel up to 25 feet without protective measures like a face mask and tiny particles can also escape through such gears. The study said protective measures like face mask and face shield effectively reduce the leakage and reach of the sneeze within 1ft3ft. However, they do not completely stop the leakage of smaller droplets, it said.

Also Read: Odisha Stands Prepared For COVID-19 Vaccination, Informs State Government To Centre

Hence social distancing is equally important. The study recommends using the elbow or hand to prevent droplets leakage even after wearing a mask during coughing and sneezing, IIT Bhubaneswar said in a statement.

Noting that controlling the virus from spreading has been a major challenge, it said the study was conducted on the efficacy of various non-standard and standard face masks under the act of sneezing.

The study, conducted by Dr Venugopal Arumuru, Assistant Professor, School of Mechanical Science (SMS), and his team, confirmed that without protectives measures like a face mask, the smaller droplets expelled during a sneeze can travel up to 25ft in a stagnant environment.

It confirms and also recommends a social distancing of 6ft from all orientations to prevent transmission of COVID- 19.

In the COVID-19 scenario, the present study will improve the understanding of smaller droplets/particles dynamics in turbulent flows, which causes transmission of the virus. These visualisation results will bring awareness to wear a mask and maintain social distancing for the general public, it said.

Prof R V Raja Kumar, Director, IIT Bhubaneswar, said the faculty and students groups of the Institute have worked tirelessly during the COVID-19 pandemic by coming up with technology development and research studies of high societal relevance.

Also Read: Centre Asks States, Union Territories To Upload Data Of Health Workers On ‘COVIN App’ For COVID-19 Vaccination Drive

Congratulating the team for conducting such focused studies on present societal relevance, Prof Raja Kumar said the current study is a step in this direction.

As well known, the spread of COVID-19 infection is mainly through droplets ejected during coughing, sneezing, and talking. The present study shows how smaller droplets can leak through various protectives measures. The importance of social distancing is clearly evident from this study, Prof Raja Kumar added.

These results will not only spread awareness but will motivate researchers to bring innovation to face mask design. I would like to reiterate that our researchers at IIT Bhubaneswar will continue to focus on COVID-19 related research and development to help mankind in the ongoing fight against the pandemic,” Prof Raja Kumar said.

Prof Sujit Roy, Dean R & D, IIT Bhubaneswar says, “The finding by the IIT Bhubaneswar team is expected to create new awareness on COVID-19, which will further help in preventing its transmission via community spread.”

Dr Mihir Kumar Pandit, Head of School of Mechanical Sciences, IIT Bhubaneswar says, “The present study has come out very nicely in visually highlighting the escape of droplets from various non-standard masks, which is widely used. Hence, the results will bring awareness to the common public.” Dr Arumuru said

Our flow visualisation study shows how smaller particles escape from the various face masks and how far they travel during sneezing. The importance of social distancing is visually evident from this study, which will educate the general public on the importance of the face mask and social distancing to prevent transmission of COVID-19. Our proposed simple experimental setup can be used to test new face mask designs. The sneeze is simulated at the exit of the nose of a standard mannequin, using air and tracer particles.

The peer-reviewed article has been selected as a “Featured Article” in Physics of Fluids Journal by the American Physical Society, the release added.

Also Read: ICMR’s Director General Says The Country May Not Have To Vaccine The Entire Population Against COVID-19

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

NDTV – Dettol Banega Swasth India campaign is an extension of the five-year-old Banega Swachh India initiative helmed by Campaign Ambassador Amitabh Bachchan. It aims to spread awareness about critical health issues facing the country. In wake of the current COVID-19 pandemic, the need for WASH (WaterSanitation and Hygiene) is reaffirmed as handwashing is one of the ways to prevent Coronavirus infection and other diseases. The campaign highlights the importance of nutrition and healthcare for women and children to prevent maternal and child mortality, fight malnutrition, stunting, wasting, anaemia and disease prevention through vaccines. Importance of programmes like Public Distribution System (PDS), Mid-day Meal Scheme, POSHAN Abhiyan and the role of Aganwadis and ASHA workers are also covered. Only a Swachh or clean India where toilets are used and open defecation free (ODF) status achieved as part of the Swachh Bharat Abhiyan launched by Prime Minister Narendra Modi in 2014, can eradicate diseases like diahorrea and become a Swasth or healthy India. The campaign will continue to cover issues like air pollutionwaste managementplastic banmanual scavenging and sanitation workers and menstrual hygiene

World

26,58,63,058Cases
22,65,37,591Active
3,40,69,608Recovered
52,55,859Deaths
Coronavirus has spread to 196 countries. The total confirmed cases worldwide are 26,58,63,058 and 52,55,859 have died; 22,65,37,591 are active cases and 3,40,69,608 have recovered as on December 6, 2021 at 5:12 am.

India

3,46,41,561 8,306Cases
98,416739Active
3,40,69,608 8,834Recovered
4,73,537 211Deaths
In India, there are 3,46,41,561 confirmed cases including 4,73,537 deaths. The number of active cases is 98,416 and 3,40,69,608 have recovered as on December 6, 2021 at 2:30 am.

State Details

State Cases Active Recovered Deaths
Maharashtra

66,38,778 707

10,826 23

64,86,782 677

1,41,170 7

Kerala

51,65,921 4,450

44,110 317

50,80,211 4,606

41,600 161

Karnataka

29,98,099 456

7,161 120

29,52,708 330

38,230 6

Tamil Nadu

27,30,516 724

8,041 29

26,85,946 743

36,529 10

Andhra Pradesh

20,73,730 154

2,122 27

20,57,156 177

14,452 4

Uttar Pradesh

17,10,475 24

134 18

16,87,430 6

22,911

West Bengal

16,19,257 620

7,639 17

15,92,074 627

19,544 10

Delhi

14,41,358 63

370 48

14,15,890 15

25,098

Odisha

10,50,249 189

2,154 25

10,39,673 212

8,422 2

Chhattisgarh

10,06,967 25

330 4

9,93,044 21

13,593

Rajasthan

9,54,891 17

221 8

9,45,715 9

8,955

Gujarat

8,27,707 48

349 23

8,17,263 24

10,095 1

Madhya Pradesh

7,93,241 9

133 9

7,82,580 18

10,528

Haryana

7,71,819 22

185 5

7,61,580 17

10,054

Bihar

7,26,237 6

26 4

7,14,121 2

12,090

Telangana

6,76,943 156

3,787 8

6,69,157 147

3,999 1

Assam

6,17,576 101

2,490 61

6,08,966 158

6,120 4

Punjab

6,03,488 37

361 14

5,86,519 23

16,608

Jharkhand

3,49,342 25

127 12

3,44,074 13

5,141

Uttarakhand

3,44,353 8

174 1

3,36,768 7

7,411

Jammu And Kashmir

3,37,807 161

1,706 25

3,31,620 184

4,481 2

Himachal Pradesh

2,27,518 35

755 45

2,22,911 80

3,852

Goa

1,79,174 49

412 18

1,75,375 31

3,387

Mizoram

1,36,454 92

3,101 454

1,32,846 544

507 2

Puducherry

1,29,085 29

280 14

1,26,930 43

1,875

Manipur

1,25,360 32

353 9

1,23,025 40

1,982 1

Tripura

84,858 5

90 1

83,943 6

825

Meghalaya

84,583 9

244 2

82,864 11

1,475

Chandigarh

65,488 7

58 2

64,610 9

820

Arunachal Pradesh

55,293 5

36 4

54,977 1

280

Sikkim

32,369 10

215 2

31,749 8

405

Nagaland

32,136

117 9

31,320 9

699

Ladakh

21,714 31

295 3

21,204 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

7,688

4 2

7,555 2

129

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