How do you know if someone is immune to Covid-19?


A: This is a tricky one.

Scientists are currently examining blood serum of individuals who have tested positive for Covid-19 to study their immune system response. At the moment, there are more questions than answers. Here are a few highlights about immunity and an article summarizing the challenges around determining how infection with Covid-19 or a future Covid-19 vaccine would protect you from infection.

1- Some virus exposures protect you for life (measles), while others provide only partial protection, if any, to future encounters (coronaviruses).

2- Immune responses are not all created equal. Weak immune responses do not always protect you from future virus encounters.

3- Measuring immune responses is really complicated, but we have several teams actively working on this topic specific to Covid-19.

Link to NY Times Opinion Piece

Link to original FB post