5 things we know and still don't know about COVID, 5 years after it appeared
Briefly

The pandemic exposed deep inequities in the global health system and reshaped public opinion about how to control deadly emerging viruses, underscoring a need for systemic change.
While the virus is less deadly now due to increased immunity, its ongoing evolution means that scientists must continuously track it to ensure public safety against potential new variants.
Though most scientists believe the SARS-CoV-2 virus likely originated from bats and infected humans through another species, concrete proof of its origins remains elusive amidst ongoing political tensions.
The true origin of the pandemic may not be known for many years, if ever, complicated by political disputes and China's alleged efforts to conceal evidence.
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