Bat immune profiles changed with season, but not all cell types did
WHAT THE EVIDENCE SAYS
Researchers validated four antibody markers and adapted flow cytometry to small Mexican free-tailed bat blood samples. Preliminary cell profiling showed some seasonality in adaptive immune cell populations and B cells across migration and reproductive phases, while granulocyte groups, macrophages and T cells did not show detected seasonal differences.
WHY IT MATTERS / OUR READ
Sampling timing and the particular cellular endpoint change what a wildlife health comparison can support. A single conventional leukocyte count is not the whole immune process.
CAVEATS / UNCERTAINTY
This is preliminary methodological and observational work, not demonstrated seasonal changes in zoonotic transmission or proof of analogous responses across all bats.
SOURCE
EcoHealth — Allira et al., 28 October 2026
View original evidence ↗
A field-ready cell assay separates seasonal B-cell changes from nondetected shifts in other immune groups.
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