“Doc, I Have a Positive COVID-19 Test But Feel Fine. Am I Infectious?”

artist's rendition of coronavirus
Artist’s rendition of Coronavirus SARS-CoV-2

One of the arguments for forcing everybody to take a COVID-19 vaccine is that you could have the virus infecting you, but not know it because you have no symptoms. I.e., you’re an asymptomatic “case.” Then you engage with others, coughing and sneezing and spitting on their food, resulting in transmission of your infection to others. Your germs in the wrong person – e.g., old and sickly – could kill them.

I haven’t done a formal search of the medical literature yet, but did run across one article addressing transmission of SARS-CoV-2 infection by asymptomatic individuals. This article says it doesn’t happen


Stringent COVID-19 control measures were imposed in Wuhan between January 23 and April 8, 2020. Estimates of the prevalence of infection following the release of restrictions could inform post-lockdown pandemic management. Here, we describe a city-wide SARS-CoV-2 nucleic acid screening programme between May 14 and June 1, 2020 in Wuhan. All city residents aged six years or older were eligible and 9,899,828 (92.9%) participated. No new symptomatic cases and 300 asymptomatic cases (detection rate 0.303/10,000, 95% CI 0.270–0.339/10,000) were identified. There were no positive tests amongst 1,174 close contacts of asymptomatic cases. 107 of 34,424 previously recovered COVID-19 patients tested positive again (re-positive rate 0.31%, 95% CI 0.423–0.574%). The prevalence of SARS-CoV-2 infection in Wuhan was therefore very low five to eight weeks after the end of lockdown.


Go ahead and analyze the article and tell me why it’s invalid. It was generated in China, and some will say we can’t trust any of the pandemic info originating there.

Asymptomatic infection with various germs is a real thing. Off the top of my head, I can’t think of any respiratory infection for which we would isolate an asymptomatic patient. Because they’re not a significant infectious risk to others.

It appears that a person with symptomatic COVID-19 can shed potentially infectious particles for some period of time even after they’re feeling back to normal. We’ve shortened that period of viral shedding as we’ve learned more about this virus (is it about a week now?).

Fauci told us earlier this year that vaccinated folks are getting symptomatic COVID-19 infections and they’re just as infectious as the un-vaccinated symptomatic patients.

The most common arguments against mandated COVID-19 vaccinations are:

  • The vaccinations haven’t been proven to be adequately safe, so I’ll take my chances with catching the virus. I’ll reconsider after we have 3-5 years of good clinical data on effectiveness and adverse events.
  • I’ve already had COVID-19 so I’m immune and present no infectious risk to anybody else.
  • I feel fine but if I develop COVID-19 symptoms I’ll get tested right away and self-isolate until I’m not a risk to anyone else.
  • The religious exemption: God gave me this life and body so I need to be a good steward and protect it. The vaccine may kill me or permanently injure me, whereas as I might never catch the virus. And if I did, I have a great chance of recovering fully. OR: I’ll depend on God to protect me. If I get sick, it’s God’s will and I accept it. OR: click for extensive documentation from Orthodox Christianity.
  • My body, my choice.

Steve Parker, M.D.

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