Pill packages have active pills (with hormones) and placebo pills (no hormones). The number of placebo pills can vary depending on the type of pill used. Your menstrual period should occur during the placebo pills due to lack of hormones. You are still protected from pregnancy during the placebo pills.
Making the Case against the biting midge: evidence is building that the biting midge, Culicoides sonorensis, is a vector of vesicular stomatitis virus (VSV), which causes significant economic losses in cattle, horses, and swine.
These results are consistent with VSV-SIV studies in juvenile and adult macaques, where the combination of VSV-SIV with other SIV vaccines (e.g., plasmid DNA, MVA) showed higher immunogenicity and antiviral efficacy after SHIV89.6P challenge than VSV-SIV alone .