Not exact matches
Every
year, genetic mutations in the virus slightly
change the chemical flavor of the lollipop, making it more sweet or sour than last season's — just different enough so the
immune system doesn't recognize it.
From
year to
year, those proteins usually undergo just enough
change to evade the
immune system.
Work by Nedergaard and others has
changed that in recent
years, but a lot of confusion about how the brain and the
immune system communicated remained, since there seemed to be no direct access.
Feeding your bird a healthy, vitamin - rich dietthroughout the
year will help boost its
immune system and stay healthier despite
changes in temperature.
One significant
change in senior horses, or those horses over 15
years of age, is their
immune system, explains Dr. Kevin Hankins, DVM, MBA, senior technical services veterinarian for Zoetis.