The latest on the coronavirus | Harvard T.H. Chan School of Public Health
Harvard Chan School experts offer comments and context about the coronavirus in a variety of media outlets.
hsph.harvard.eduHere are the latest widely-reported developments on the 2019–20 coronavirus pandemic as of May 2026:
-
Global trajectory and vaccines: After the initial waves in 2020, several vaccines and updated boosters have become routine in many countries, with ongoing monitoring of variants and adjustments to vaccines as needed. Public health agencies emphasize vaccination, mask use in high-risk settings, and rapid testing where appropriate.[5][6]
-
Treatments and hospital care: Early during the pandemic, several antiviral and anti-inflammatory therapies were identified to reduce severity in high-risk patients. Ongoing research continues to optimize treatment protocols, especially for breakthrough infections and high-risk populations.[1]
-
Surveillance and data: Real-time surveillance systems and excess-mortality analyses remained important tools for guiding responses, alongside wastewater surveillance and variant tracking. International coordination persists through organizations like WHO and regional public health bodies.[1][5]
-
Preparedness and infrastructure: The pandemic catalyzed investments in public health infrastructure, vaccine manufacturing capacity, and global health security mechanisms to better respond to future outbreaks. This includes stockpiles, supply chain resilience, and rapid-response research networks.[6][5]
If you’d like, I can pull the very latest situation reports from WHO or major health agencies and summarize them with citations. I can also tailor a concise briefing for your location in Valletta, Malta (local vaccination guidance, testing availability, and travel considerations).