COVID-19. The KEY ROLE of MYELOID CELLS
(mega-thread)
Myeloid cells are a type of white blood cell that includes neutrophils, monocytes, and macrophages.
During a SARS-CoV-2 infection,
2) ...myeloid cells are activated and recruited to the site of infection. They release various pro-inflammatory molecules, such as cytokines and chemokines, to attract other immune cells and enhance the immune response.
3) "The immune response is activated in ASYMPTOMATIC infection, but is dysregulated in mild and severe COVID-19 patients. Our data suggest that the turning point depends on the function of MYELOID cells and neutrophils." ncbi.nlm.nih.gov/pmc/articles/P…
When "Mr SARS-COV-2" 🤢 meets "Mrs INFLUENZA" 🥶 (2nd part)
7) In this 4th study, researchers showed that "sequential coinfection with A(H1N1)pdm09 one day prior to SARS-CoV-2 exposure resulted in a lower lung SARS-CoV-2 titer ...
8) ...and viral load than with SARS-CoV-2 monoinfection, but a higher lung A(H1N1)pdm09 viral load."
9) "Coinfection also increased intestinal inflammation with more SARS-CoV-2 nucleoprotein expression in enterocytes."
When "Mr SARS-COV-2" 🤢 meets "Mrs INFLUENZA" 🥶 (1st part)
This is a fascinating subject because we sometimes see, COVID-19 which seems blocking the progression of respiratory diseases, or sometimes giving the impression of contributing to their development. What about it?
2) In a first study, Japanese researchers investigated the impact of COVID-19 on influenza activity.
They compared the number of cases positive for COVID-19 and for influenza across 22 representative countries. onlinelibrary.wiley.com/doi/10.1111/ir…
3) Theirs results demonstrate alternating prevalence of SARS-CoV-2 and influenza virus.