Bacterial alpha diversity

1. COVID-19 decreases bacterial alpha diversity in humans.

   “bacterial alpha diversity decreases progressively throughout life but only in severely ill COVID-19 patients”

   Humansseverely ill COVID-19 patients

   Age- and disease severity-associated changes in the nasopharyngeal microbiota of COVID-19 patients

   iScience·Feb 22, 2025

More on COVID-19

1. Age is associated with bacterial alpha diversity in humans.

   “Alpha diversity increased with age in both the forehead and forearm, and this increase was most pronounced in the elderly group.”

   Humanshealthy womenforehead and forearm skinfemalesn = 98

   Age‑Related Remodeling of the Skin Microbiome in Healthy Women: Site‑Specific Patterns Between Sebaceous and Dry Skin Regions

   Clinical, cosmetic and investigational dermatology·Oct 12, 2026