RSV Prefusion F Protein-Based Maternal Vaccine - Preterm Birth and Other Outcomes
by Dieussaert I. et al.The authors conducted a phase 3 trial involving pregnant women 18 to 49 years of age to assess the efficacy and safety of RSVPreF3-Mat. The results of this trial, in which enrollment was stopped early because of safety concerns, suggest that the risks of any and severe medically assessed RSV-associated lower respiratory tract disease among infants were lower with the candidate maternal RSV vaccine than with placebo but that the risk of preterm birth was higher with the candidate vaccine.
The objective of the study was to determine the knowledge, attitudes and practices of pregnant women regarding COVID-19 vaccination in pregnancy in seven low- and middle-income countries (LMIC). COVID-19 vaccine questionnaires were administered to pregnant women in the Global Network's Maternal Newborn Health Registry from February 2021 through November 2021 in face-to-face interviews.This COVID-19 vaccine survey in seven LMICs found that knowledge about the effectiveness and safety of the vaccine was generally low but varied. Concerns about vaccine safety and effectiveness among pregnant women is an important target for educational efforts to increase vaccination rates.
Association of Discrimination and Health Care Experiences With Incomplete Infant Vaccination During COVID-19
by Preis et alThis observational analysis explores how the COVID-19 pandemic contributed to a decrease in infant vaccinations.
A prospective cohort study of COVID-19 vaccination, SARS-CoV-2 infection, and fertility
by Wesselink et alThis study examined the associations of COVID-19 vaccination and SARS-CoV-2 infection with fertility among couples trying to conceive spontaneously using data from an internet-based preconception cohort study. Findings indicate that male SARS-CoV-2 infection may be associated with a short-term decline in fertility and that COVID-19 vaccination does not impair fertility in either partner.
Number of Childhood and Adolescent Vaccinations Administered Before and After the COVID-19 Outbreak in Colorado
by Sean T. O’Leary et alIn this report, the authors assessed the number of childhood and adolescent vaccinations administered in the months before and after the start of the COVID-19 outbreak in Colorado. Findings suggest that since the onset of the COVID-19 pandemic, vaccination uptake in children and adolescents has shown a significant decrease in Colorado. While the clinical implications of our observation are not yet known, public health advocates should consider addressing this drop to avoid the potential for vaccine-preventable diseases.
Maternal immunisation to improve the health of HIV-exposed infants
by Bengtson AM et alHIV-exposed but uninfected (HEU) infants are at an increased risk of many infectious diseases that can contribute to the high mortality seen among HEU children. Maternal immunisation could be a promising strategy to reduce infections in HEU infants. However, very little research has explored the effect of HIV on the immunogenicity and effectiveness of vaccines given during pregnancy. The authors reviewed the available evidence on maternal immunisation among women living with HIV (WLWH) for all vaccines recommended, considered, or being investigated for routine or risk-based use during pregnancy. Of the 11 vaccines included, only three have been investigated in WLWH. Available evidence suggests that maternal HIV infection limits the immunogenicity of several vaccines, leaving HEU infants more susceptible to infection during their first few months of life. Whether maternal immunisation reduces the infectious morbidity and mortality associated with infectious diseases in HEU children remains unknown.