How COVID-19 Antibody Tests Work

Most COVID-19 antibody tests available to use outside a laboratory involve “lateral flow assays” named because they use diffusion of serum antibodies laterally in a paper strip. Blood or serum is placed at one end of the strip, and if it binds to a gold nanoparticle coupled to coronavirus proteins the nanoparticle is captured atContinue reading “How COVID-19 Antibody Tests Work”

What are COVID-19 antibody tests and why are so many failing……?

Antibody blood proteins may be the key to knowing who has been infected with CORONA-19 virus. They may also identify individuals who have immunity (protection) against viral infection. Many assays for antibodies are currently available, but some don’t work and give false results. Understanding the immune response to COVID-19 and how antibody assays work isContinue reading “What are COVID-19 antibody tests and why are so many failing……?”

Half of NYC Infected With COVID-19.

Antibody studies are now indicating much higher rates of COVID infection A PCR study showed 15% of random NYC woman giving birth were positive for COVID virus by early April Given the timing and limitations of the PCR testing, the percent of random NYC COVID-19 infected is now approaching 50% Last Sunday, for Passover andContinue reading “Half of NYC Infected With COVID-19.”

It Truly Is Getting Better (and the US is not worse than the rest of the world!)….

Today I have received a great deal of concern that the pandemic is not improving, especially in the US. The reasons for this are, in part, due to confusing and contradictory dialogues in the news. Some also have used graphics showing total death numbers to suggest the US is doing worse than the rest ofContinue reading “It Truly Is Getting Better (and the US is not worse than the rest of the world!)….”

Feedback on “Moses” Post

Some gave comments that the case fatality rate (CFR) used to calculate the percent of infected individuals in yesterday’s post is too low The CFR, which was initially thought to be very high (two people dying for every 100 people infected or 2.0%) has dropped as testing for the virus becomes more widespread. With theContinue reading “Feedback on “Moses” Post”

Will you need a blood test to go back to work?

There was a front-page article in the New York Times today how Italy may be using antibody testing to verify people who can go back to work. The article told how Italy is following Germany in using a blood test that identifies antibodies (immune proteins) specific for COVID-19 as a way to clear individuals toContinue reading “Will you need a blood test to go back to work?”

Important Updates on Antibody testing and How COVID-19 Came to the USA.

 Updates on topics this blog’s author thinks are important Antibody testing for COVID-19.  Antibodies are proteins in the blood that document that someone has been exposed to the COVID–19 virus and has developed immunity. This is important because tests for COVID-19 antibodies identify all people who been exposed to the virus, not just people whoContinue reading “Important Updates on Antibody testing and How COVID-19 Came to the USA.”

The Time for Viral Testing is Over: Why are there Variations in Death Rates in Different Countries

Executive summary Rates of infection and death with coronavirus (COVID-19) appear very different in different countries. The reasons for this have been hotly debated. Many pundits have suggested that inadequate virus testing has been responsible due to inadequate isolation of infected individuals.  Data now show that these differences may relate to who in the populationContinue reading “The Time for Viral Testing is Over: Why are there Variations in Death Rates in Different Countries”

It’s Time: How to self-diagnose a coronavirus infection. What to do if you think you're infected.

Executive Summary Coronavirus infections need to be self diagnosed This can be done by identifying a number of characteristic symptoms Individuals who suspect they are infected should contact their physician and not go to an emergency room or hospital Anyone with suspected coronavirus infection should self-isolate for 14 days regardless of whether they have hadContinue reading “It’s Time: How to self-diagnose a coronavirus infection. What to do if you think you're infected.”