Individuals are infectious with COVID-19 when they're shedding the virus, which means that the virus replicates in the cells of their upper or lower respiratory tract. In this video, we will examine published articles discussing viral shedding, the incubation period (mean incubation period was 5.2 days) and the serial interval, by examining the results of 77 COVID-19 transmission pairs.

The study found that infectiousness starts 2.3 days before symptom onset. That patients are most infectious 0.7 days before symptom onset.They also found that 44% of infectiousness or infections occurred in the pre-symptomatic phase making it difficult to track.

#medmastery #coronavirus #COVID19 #sarscov2 #coronaviruschina #coronavirustruth #coronavirusdeaths #WHO #wuhan #infection #pandemic #publichealth
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Links for reference:
https://www.nature.com/articles/s4159...
https://www.nejm.org/doi/full/10.1056...
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More updates by Dr. Wiesbauer:
COVID-19 Update 1: How to tell if a pandemic is likely to occur or not–R0 and the serial interval:    • COVID-19 Update 1: How to tell if a p...  
COVID-19 Update 2: How to stop an epidemic - Herd immunity:    • COVID-19 Update 2: How to stop an epi...  
COVID-19 Update 3: Symptoms of COVID-19:    • COVID-19 Update 3: Symptoms of COVID-...  
COVID-19 Update 4: Clinical characteristics of COVID-19:    • COVID-19 Update 4: Clinical character...  
COVID-19 Update 5: Estimating case fatality rates for COVID-19:    • COVID-19 Update 5: Estimating case fa...  
COVID-19 Update 6: Seasonality: will COVID-19 go away in the summer?:    • COVID-19 Update 6: Seasonality: will ...  
COVID-19 Update 7: This is probably the most important picture of the whole Coronavirus-epidemic:    • COVID-19 Update 7: This is probably t...  
COVID-19 Update 8: Zinc and chloroquine for the treatment of COVID-19?:    • COVID-19 Update 8: Zinc and chloroqui...  
COVID-19 Update 9: Hydroxychloroquine and azithromycin for the treatment of COVID-19–Review of study by Didier Raoult:    • Hydroxychloroquine and azithromycin f...  
COVID-19 Update 10: Is COVID-19 an airborne disease? Will we all need to wear face-masks against SARS-CoV-2?    • COVID 10: Is COVID-19 an airborne dis...  
COVID-19 Update 11: How exactly the coronavirus becomes airborne.    • COVID-19 Update 11: How exactly the c...  
COVID-19 Update 12: Attack rates of COVID-19 depend on face-to-face time spent with infected persons:    • COVID-19 Update 12: Attack rates of C...  

COVID-19 Update 13: Randomized Controlled Trial of Hydroxychloroquine in Patients with COVID-19:    • COVID-19 Update 13: Randomized Contro...  

COVID-19 Update 14: Are children contributing to the spread of COVID-19?    • COVID-19 Update 14: Are children cont...  

COVID-19 Update 15: Can we disinfect and reuse N95 masks?:
   • COVID-19 Update 15: Can we disinfect ...  

COVID-19 Update 16: Effectiveness of surgical masks for prevention
   • COVID-19 Update 16: Effectiveness of ...  

COVID-19 Update 17: How an app can get us out of lockdown
   • COVID-19 Update 17: How an app can ge...  
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Useful resources:
For checking daily developments of cases, deaths and more:
https://gisanddata.maps.arcgis.com/ap...
https://www.worldometers.info/coronav...

Other useful resources:
Journal Watch:
https://www.jwatch.org/na51020/2020/0...
New England Journal of Medicine:
https://www.nejm.org/coronavirus
Github collaboration:
https://github.com/midas-network/COVI...
CDC:
https://www.cdc.gov/coronavirus/2019-...
WHO:
https://www.who.int/emergencies/disea...
Nucleuswealth:
https://nucleuswealth.com/articles/up...
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Speaker: Franz Wiesbauer, MD MPH
Internist & Founder at Medmastery
LinkedIn:   / franzwiesbauer  
PubMed: https://www.ncbi.nlm.nih.gov/pubmed/?...

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Please Note: Medmastery's videos, medical lectures, medical illustrations, and medical animations are for medical education and exam preparation purposes, and not intended to replace recommendations by your doctor or health care provider.