Incubation period: Evidences on SARS-CoV-2 (COVID-19)

April 4, 2020
New Delhi, April 04, 2020:

How long after the infection do symptoms appear? Are people infectious during this time?

What do we know?

  • The best estimate of the incubation period of COVID-19 at present stands at 5.1 days, with 99% of individuals exhibiting symptoms within 14 days following exposure.Less than 2.5% of infected individuals exhibit symptoms sooner than 2 days following exposure. 
  • The range of incubation periods is wide, with estimates of 24, 3,  and 18 days.
  • COVID-19 test can be positive in individuals lacking clinical symptoms.
  • Individuals can be infectious while they are asymptomatic.  Additionally, asymptomatic individuals can carry similar amounts of virus in their nose and throat as symptomatic individuals.
  • While the infectious period is largely unknown, it could possibly be up to 10-14 days.
  • Approximately 4 to 7.5 days are there, on an average, between symptom onset in successive cases of a single transmission chain.

www.healthysoch.com

  • A majority of individuals is admitted to the hospital within 8-14 days of symptom onset.
  • Patients are positive for COVID-19 via PCR for 8-37 days following symptom onset.
  • Individuals may test positive via PCR for 5-13 days after symptoms disappear and hospital discharge. The ability of these individuals to infect others is not clearly known.
  • As per WHO, no evidence of re-infection with SARS-CoV-2 after recovery exists.
  • Experimentally infected macaques could not be reinfected after their primary infection resolved.

 What do we need to know?

  • The average infectious period during which individuals can transmit the disease?
  • Are individuals infectious after hospital discharge and clinical recovery, or do positive PCR tests only detect non-infectious virus?
  • Can individuals become re-infected after recovery? If yes, how long after?

-Dr KK Aggarwal

President CMAAO, HCFI and Past National President IMA

healthysoch

Stay informed with the latest news from HealthySoch. Sign up today for exclusive insights and updates!

We promise we never spam!

Leave a Reply

Your email address will not be published.

Health Tips

Dr. T S Kler Padma Bhushan Awardee
MD, DM, MRCP, FRCP(U.K), FACC, D.Sc
Chairman – Fortis Heart Institute Gurugram

Precautions to avoid Corona Virus:

  1. Stay home as far as possible.
  2. Wash hands with soap and water frequently.
  3. Keep distance from people even your home members.
  4. Keep atleast 1-2 metres away from anybody coughing.
  5. Don’t touch your face, nose and mouth.

 

Dr. K.K Says

Archives

MonTueWedThuFriSatSun
    123
45678910
18192021222324
25262728293031
       
   1234
567891011
12131415161718
26272829   
       
891011121314
293031    
       
    123
45678910
11121314151617
25262728293031
       
  12345
6789101112
13141516171819
27282930   
       
      1
2345678
9101112131415
16171819202122
3031     
     12
17181920212223
24252627282930
31      
   1234
567891011
12131415161718
2627282930  
       
1234567
891011121314
22232425262728
293031    
       
     12
3456789
17181920212223
24252627282930
       
  12345
6789101112
       
  12345
13141516171819
2728     
       
      1
9101112131415
3031     
   1234
567891011
       
282930    
       
    123
45678910
       
  12345
27282930   
       
      1
3031     
    123
11121314151617
       
28      
       
2930     
       
    123
       
       
       
      1
9101112131415
3031     
     12
3456789
10111213141516
17181920212223
242526272829 
       
  12345
13141516171819
2728293031  
       
      1
23242526272829
3031     
    123
       
    123
25262728   
       
78910111213
28293031   
       
293031    
       
14151617181920
28293031   
       
   1234
567891011
       
   1234
567891011
262728    
       
891011121314
293031    
       
    123
18192021222324
25262728293031
       
  12345
27282930   
       
      1
2345678
16171819202122
3031     
    123
45678910
18192021222324
       
28293031   
       
     12
31      
   1234
       
  12345
6789101112
       
HealthySoch

Don't Miss

Benefits of Yoga in Preventing Ailments and for Chronic Disease Management

Regular practice of yoga offers benefits for the mind, body

Female opens her mouth after 30 Years

India healthysoch New Delhi, March 30, 2021 : 30 years