Figure 1. Experimental groups.

Animals were divided into 3 separated groups. Naive animals were ovariectomized (OVx) or not (Sham) and seven days later experiments were performed. OVx or Sham animals were imunized (OVx – OVA or Sham – OVA) seven days after ovaerictomy and seven days later experiments were performed. OVx or Sham animals were immunized (OVx – OVA or Sham – OVA) seven days after ovariectomy and 14 days later were challenged with aerossolized OVA (OVx – OVA/OVA or Sham – OVA/OVA).