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What COVID-19 variants are going around in May 2025?
Get the latest COVID-19 news from infectious diseases expert Mark Rupp, MD, including COVID-19 case rates, types of variants circulating and vaccine updates.
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Fall 2024 update for flu, COVID-19 and Mpox
As we head into autumn, it's time to take stock of the current landscape of infectious diseases that have dominated headlines in recent years.
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Do I need a COVID-19 booster this spring?
In February 2024, the Centers for Disease Control and Prevention, or CDC, recommended adults aged 65 and older receive a vaccine dose.
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Everyone 6 months and older should get an updated COVID-19 vaccine in fall 2023
A new vaccine will be available later this fall, updated to be more effective against the currently circulating COVID-19 strains. When it is released, everyone should consider getting the new booster, says infectious diseases specialist Mark Rupp, MD.
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New at-home test can detect both COVID and the flu
The Lucira™ Check It COVID-19 Test is a single-use kit. Available over the counter (without a prescription), the test can detect and tell the difference between influenza A and B and SARS-CoV-2 (the virus that causes COVID-19).
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You asked, we answered: Is syncope a symptom of COVID?
There are a few reports of people presenting post-COVID who experience syncopal issues. Still, the difficult part for health care providers is that various processes can cause syncope, even without post-COVID complications.
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COVID-19: Disease-induced (natural) immunity, vaccination or hybrid immunity?
If you’ve had COVID-19 before, does your natural immunity work better than a vaccine?
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What to expect at your next appointment
As we all are beginning to return to a state of "new normal," this post explains what that looks like for Nebraska Medicine patients.
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You asked, we answered: Do the COVID-19 vaccines cause memory loss?

Do the COVID-19 vaccines cause memory loss?
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You asked, we answered: Is Paxlovid linked to rebound COVID cases?
I tested negative two days after finishing my five days of Paxlovid. However, I tested positive three days later.
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Do repeat COVID infections make long COVID more likely?
Does looking at the impact of reinfection matter, especially if you’ve been vaccinated?
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