SLIDE 13 Barrier immunity Inflammation/fever Acquired /specific immunity
Antigen presentation Humoral immunity: B-cells > antibodies
Cell-mediated immunity: T-cells
Up to 4 hours
Increased blood flow, activation of blood wall defences Movement of white blood cells into tissues Histamine and other cytokines
Instant
Innate immunity
Skin, airway defences, saliva, stomach acid, microbiome
Days to weeks
COVID-19
EITHER healing and reduced symptoms OR risk of immune damage, kidney disease, sepsis,
25-60%?
4 hours – 4 days
Check ourhealth.directory for more
Defensive rings: our immune system
Phagocytes: neutrophils, macrophages, monocytes, natural killer cells Complement, cytokines, interferons