Dr. Katrine Wallace
Epidemiologist & Science Communicator

Measles has been in the news a lot lately because, as of last week, there have been measles cases reported in 16 states (Arizona,...

The past couple of years we have seen fall virus seasons characterized with a tripledemic of COVID-19, RSV, and influenza surging...

The COVID-19 vaccines were globally introduced in 2020, accompanied by the most intensive vaccine safety monitoring program the world has...

Since we are in the middle of holiday and fall cold season, and we have a noticeable uptick in cases per the wastewater data and the...

Masking is a critical public health tool for preventing spread of COVID-19. To protect yourself and others from COVID-19, CDC continues...

Q - I take the subway to work every day, should I wear a mask again since Covid is ticking up here in NYC? What are my chances of getting...

Hi folks! I haven't written about long covid in a while so I wanted to discuss why it seems like everywhere you look there seems to be a...

How did this happen? I feel like I just had my seasonal flu vaccine but here we are again! The optimal timing to get the flu vaccine is...

What is EG.5? The SARS-COV-2 EG.5 variant is another omicron sub-variant, and is a descendent of XBB.1.9.2, but with an additional...

Vaccines continue to be the most important tool in our arsenal to avoid severe illness and death from COVID-19. In the US, we have...

Happy new year everyone! I recently flew to Washington DC for work, and I was one of about 5 people masking on the whole plane, so I have...

Q: I've heard about really high rates of respiratory viruses this year. How concerning is this and is there a way to protect the...

A: There are no clinical settings in the US that can provide the information to patients as to what variant they have. The reasons for...

We all know that person...the one who says every year that they don't get the flu shot because it "gave them the flu" the last time they...

I have had a couple people ask me If i get a flu shot now, can I get a second one later in the season? So theoretically I guess you...

Bivalent boosters are here and it's *really* exciting because these vaccines contain BA4/BA5, so they are a perfect match to the...

I've been getting a lot of questions from people about what they need to do to prevent polio. Especially: do we need to get a polio...

Are daycares and K-12 schools are locations of concern when it comes to monkeypox? The overall risk for MPV in children remains low. ...

The World Health Organization declared the world free of Smallpox on May 8, 1980. It is often touted as one of the foremost achievements...

Last Saturday (July 23), The WHO designated the 2022 monkeypox virus outbreak as a “public health emergency of international concern”...