So Vijay, let me lay out how we're thinking about '22 on the back of '21. And as Matt was just saying, it's a little early to get into specific specifics, as you can imagine. 2022 in this dynamic environment is a ways away. But having said that, we feel confident around the durability of our COVID revenues. So let me try and lay this out a little bit. As I mentioned, we think we entered 2022 with $1 billion in vaccine and therapeutic backlog. And the potential upside that we talked about based on the assumptions, not including boosters, not including kids being vaccinated, nor including at this point, other vaccine programs that might be earlier stage in the pipeline. If you think about that in our very, very broad portfolio, both in terms of upstream and downstream solutions, independent of the vaccine or therapeutic modality, we really see that we're very well positioned there. And that $1 billion backlog is sort of the beginning of that story. Now as we think about testing, so diagnostic testing for COVID, COVID is going to be or is already endemic, and we'll be testing at the point of care for a long time. And so while some folks are talking about 2021 being a peak year for testing for the market, we think Cepheid is uniquely positioned. You recall my example of the concentric circles with the highest durability tests being in the center, representing really Cepheid's point-of-care workflow. And as you think about Cepheid expanded installed base, the very strong menu that we have, we believe that we'll do roughly the same number of tests in 2022 as we are doing in 2021. And you'll recall, we just raised that from 36 million to 45 million tests. And then if you think about our base business, here, we really are and continue to be exposed to a number of attractive secular growth drivers. Biologics, more generally in life science research, along with molecular diagnostics and the decentralization of health care. And then, of course, environmental sustainability as you think about our water quality group and packaging needs continue to proliferate. So net-net, we feel we're uniquely positioned to outperform in 2021 and beyond.