Investigators at Boston Children's Hospital have demonstrated that SARS-CoV-2 infection of blood monocytes and lung macrophages in the lung could kill the cells via pyroptosis, increasing inflammation and leading to severe COVID-19.

Shares of Suzhou, China-based Kintor Pharmaceutical Ltd. (HKEX:9939) rose to HKD28.85 (US$3.68), up HKD14.87, or 106%, after the firm reported top-line data from the phase III multiregional trial with proxalutamide in people with mild to moderate COVID-19 infection, regardless of vaccination status or risk factors.

Investigators at Boston Children's Hospital have demonstrated that SARS-CoV-2 infection of blood monocytes and lung macrophages in the lung could kill the cells via pyroptosis, increasing inflammation and leading to severe COVID-19.

After COVID-19 reached a pandemic peak in January due to the omicron variant, infections in the U.S. are now hitting the lowest levels since March of 2020. During the past week, there were 195,963 confirmed SARS-CoV-2 infections in the country, according to Johns Hopkins University data. That is 5.5% fewer infections than the same week two years ago and 56% fewer than last year. Deaths are also down to 5,602 for the week, although there were lower points in the spring and summer months of 2020 and 2021.

"Now is the time to discuss the need for future boosters as we aim to move forward safely, with COVID-19 becoming a virus like others such as influenza that we prepare for, protect against and treat,” the FDA’s Peter Marks said in announcing an April 6 virtual meeting of the Vaccines and Related Biological Products Advisory Committee (VRBPAC).

The Gates Foundation is joining with other philanthropic funders in launching an initiative to develop small-molecule antiviral drugs to lay in as part of preparations for the next pandemic.

An analysis of brain scans of participants in the UK Biobank has shown there are significant differences between the condition of the brain before and after mild COVID-19 infection. These included a reduction in overall brain size, reduction in grey matter thickness in the orbitofrontal cortex and hippocampal gyrus, and changes in markers of tissue damage in regions functionally connected to the primary olfactory cortex. Infected participants also showed, on average, a larger cognitive decline than participants who had not contracted COVID-19.