Half a decade on from the start of the COVID-19 pandemic, a study by the University of Surrey highlights the significant impact of combined public health measures in reducing airborne viral transmission. High-quality face masks were shown to reduce transmission risk by ninefold, while doubling indoor air ventilation cut the risk by nearly a third, providing valuable insights to support future prevention strategies for respiratory diseases. 

Research from Radboud university medical center shows that the lockdowns during the COVID-19 pandemic had a significant impact on people's immune response to microorganisms. During the lockdown, inflammation level in the body was low, but afterwards, the immune system reacted more intensely to viruses and bacteria. The results are now published in Frontiers of Immunology.

At the beginning of the COVID-19 pandemic, numerous studies had shown that COVID-19 patients with high levels of neutrophils, a key immune cell, presented with more severe disease and poor clinical outcomes. It was not clearly understood though how or why this was happening. A recently published study from Trinity researchers now sheds light on the role of neutrophils in COVID-19 and its contribution to the disease's progression. Their findings uncover potential mechanisms that could guide more effective treatments for severe COVID-19.  The study has been published in the journal JCI Insight.

The 2024 long COVID research index for adults builds on the 2023 index with additional data and symptoms to help researchers classify symptomatic long COVID and its symptom subtypes. Continued future refinement of the index will be needed as the understanding of long COVID evolves. 

Behind closed doors during Canada's COVID-19 lockdowns, a devastating crisis unfolded. While the world focused on mask mandates and social distancing, immigrant women across Canada faced an equally dangerous threat: a surge in intimate partner violence (IPV).

Research published in the British Journal of Developmental Psychology indicates that the COVID-19 pandemic and lockdown had largely positive impacts on gender identity development in trans and gender diverse youth.