ICYMI on KPBS Midday Edition: 'We know with BA.4 and BA.5, which are now the predominant lineages in San Diego, that these are more likely to have immune escape,' Dr. Chris Longhurst says.
Interestingly, we're seeing that the wastewater levels of COVID-19 have actually leveled off over the last couple of weeks. But of course, we're seeing case rates increase. And that's probably a reflection of the fact that it takes a week or two once you get infected to really become symptomatic and sick. We know with BA.4 and BA.
It seems like this wastewater testing started out about two years ago on the UC San Diego campus, and now it's being used around the world. Is that right?We can't take credit for being the first to ever do wastewater testing. It's been around for about 20 years, but it really hasn't been broadly used. We're certainly one of the first colleges to use this to find cases, and that was extraordinarily helpful for us as part of ourprogram.
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