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Ex vivo Culture of Human Placental Explants for the Study of Viral Transmission Across the Maternal-Fetal Interface
Published on: December 30, 2025
A different kind of risk?--pregnant women's experience of HIV testing in pregnancy
This paper describes some emerging themes developed from conversations with pregnant women participating in a pilot study in Ottawa and Montréal. These initial findings will inform a national study that will address the issue of HIV screening in pregnancy from the perspectives of the women themselves. Through an iterative series of conversations with each woman, the women in this pilot shared their experiences of being offered and of completing HIV testing during their pregnancy. The paper addresses the specific question of whether, in the context of promising new interventions to reduce perinatal transmission and rising levels of HIV infection among Canadian women of child-bearing age, the drive to screen as many pregnant women as possible has resulted in an abrogation of a woman's right to the established principles of HIV testing. Specifically, what is the evidence from the women in this pilot of adherence to the principles that testing for HIV should always be voluntary and should always be carried out only after the person has given their informed specific consent?
This paper describes some emerging themes developed from conversations with pregnant women participating in a pilot study in Ottawa and Montréal. These initial findings will inform a national study that will address the issue of HIV screening in pregnancy from the perspectives of the women themselves. Through an iterative series of conversations with each woman, the women in this pilot shared their experiences of being offered and of completing HIV testing during their pregnancy. The paper addresses the specific question of whether, in the context of promising new interventions to reduce perinatal transmission and rising levels of HIV infection among Canadian women of child-bearing age, the drive to screen as many pregnant women as possible has resulted in an abrogation of a woman's right to the established principles of HIV testing. Specifically, what is the evidence from the women in this pilot of adherence to the principles that testing for HIV should always be voluntary and should always be carried out only after the person has given their informed specific consent?
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Types of Hypothesis Testing
When the null and alternative hypotheses are stated, it is observed that the null hypothesis is a neutral statement against which the alternative hypothesis is tested. The alternative hypothesis is a claim that instead has a certain direction. If the null hypothesis claims that p = 0.5, the alternative hypothesis would be an opposing statement to this and can be put either p > 0.5, p < 0.5, or p ≠ 0.5.

