Washington, Pfizer and BioNTech launched a new clinical trial in nine countries including the United States, Canada, South Africa, the United Kingdom (UK) and Brazil to test their Corona vaccine in pregnant women, the companies said in a statement.
“Phase 2/3 trial will enroll approximately 4,000 healthy pregnant women in the US, Canada, Argentina, Brazil, Chile, Mozambique, South Africa, UK, and Spain,” the release said. “Women enrolled in the trial will be unblinded shortly after giving birth to allow those women who originally received placebo to be vaccinated while staying in the study.”
