Public health experts hope the technology will help monitor threats beyond COVID-19, like opioids and the flu, but the strategy requires resources and political buy-in. And while Congress has enacted billions in pandemic funding for states, only a handful have used the money to establish wastewater surveillance.
The global organisations that buy Covid vaccines for poorer countries "need to step up" and order doses from Africa's only Covid vaccine maker in order to save the production line, the company's senior executive told the BBC.
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