Biology · Human Health and Disease
A newborn baby is protected against intestinal infections during the first few days after birth despite having an immature immune system. Which of the following best explains this protection?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Activation of memory B-cells in the infant
- 2Presence of IgA antibodies in colostrum✓
- 3Development of active immunity due to early exposure to microbes
- 4Transfer of IgG antibodies through placenta after birth
Correct answer
Presence of IgA antibodies in colostrum
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