Figure 2. Changes of SIgA secretion rate before appearance of URTI symptoms. 1–3 day: 1–3 days before appearance of URTI symptoms. Appearance of URTI symptoms: the day when subjects exhibited URTI symptoms.

doi:10.4324/9780203412992-201

Chapter

Figure 2. Changes of SIgA secretion rate before appearance of URTI symptoms. 1–3 day: 1–3 days before appearance of URTI symptoms. Appearance of URTI symptoms: the day when subjects exhibited URTI symptoms.

Chapter

ABSTRACT

Figure 2. Changes of SIgA secretion rate before appearance of URTI symptoms. 1-3 day: 1-3 days before appearance of URTI symptoms. Appearance of URTI symptoms: the day when subjects exhibited URTI symptoms.