Hannah Rosen

what the average human sickness with this particular bird virus is going to look like.

So what do we know so far about what it could look like? Right. So let me again split that into the two categories that we roughly know about so far. So the most common cases in the U.S. so far have still been in dairy workers who appear to be catching the virus directly from the infected dairy cattle that they're working with.

So what do we know so far about what it could look like? Right. So let me again split that into the two categories that we roughly know about so far. So the most common cases in the U.S. so far have still been in dairy workers who appear to be catching the virus directly from the infected dairy cattle that they're working with.

So what do we know so far about what it could look like? Right. So let me again split that into the two categories that we roughly know about so far. So the most common cases in the U.S. so far have still been in dairy workers who appear to be catching the virus directly from the infected dairy cattle that they're working with.

And it seems like a lot of this is through exposure to the cow's milk as they're milking them. Maybe the milk gets sprayed onto their face, gets in their eyes, might be inhaled as the milk sort of aerosolizes into the air. And most of those cases do seem pretty mild on the spectrum of things. People are getting conjunctivitis, effectively pinkeye.

And it seems like a lot of this is through exposure to the cow's milk as they're milking them. Maybe the milk gets sprayed onto their face, gets in their eyes, might be inhaled as the milk sort of aerosolizes into the air. And most of those cases do seem pretty mild on the spectrum of things. People are getting conjunctivitis, effectively pinkeye.

And it seems like a lot of this is through exposure to the cow's milk as they're milking them. Maybe the milk gets sprayed onto their face, gets in their eyes, might be inhaled as the milk sort of aerosolizes into the air. And most of those cases do seem pretty mild on the spectrum of things. People are getting conjunctivitis, effectively pinkeye.

They do have maybe some respiratory symptoms, but it's pretty quick to resolve. There haven't really been too many really serious cases when the virus seems to be jumping over from cattle. But a slightly different version of the virus is also jumping over from poultry. And those cases have been severe.

They do have maybe some respiratory symptoms, but it's pretty quick to resolve. There haven't really been too many really serious cases when the virus seems to be jumping over from cattle. But a slightly different version of the virus is also jumping over from poultry. And those cases have been severe.

They do have maybe some respiratory symptoms, but it's pretty quick to resolve. There haven't really been too many really serious cases when the virus seems to be jumping over from cattle. But a slightly different version of the virus is also jumping over from poultry. And those cases have been severe.

This virus, since it started spilling kind of intermittently into people in the 1990s, has caused multiple deaths worldwide. But if we're looking just at deaths in the U.S., it has only been one so far. And I hope it stays that way.

This virus, since it started spilling kind of intermittently into people in the 1990s, has caused multiple deaths worldwide. But if we're looking just at deaths in the U.S., it has only been one so far. And I hope it stays that way.

This virus, since it started spilling kind of intermittently into people in the 1990s, has caused multiple deaths worldwide. But if we're looking just at deaths in the U.S., it has only been one so far. And I hope it stays that way.

Let me start by explaining what the virus would effectively have to accomplish to start spreading from person to person and for there to be like huge epidemic or pandemic potential here.

Let me start by explaining what the virus would effectively have to accomplish to start spreading from person to person and for there to be like huge epidemic or pandemic potential here.

Let me start by explaining what the virus would effectively have to accomplish to start spreading from person to person and for there to be like huge epidemic or pandemic potential here.

So for a virus to successfully spread between people, it has to be able to get into our cells, make more of itself inside of them, get back out of those cells and then get out of that host, you know, that person and spread to someone else and then do the same thing over and over and over and over again. Mm-hmm.

So for a virus to successfully spread between people, it has to be able to get into our cells, make more of itself inside of them, get back out of those cells and then get out of that host, you know, that person and spread to someone else and then do the same thing over and over and over and over again. Mm-hmm.

So for a virus to successfully spread between people, it has to be able to get into our cells, make more of itself inside of them, get back out of those cells and then get out of that host, you know, that person and spread to someone else and then do the same thing over and over and over and over again. Mm-hmm.

A virus that's super well adapted to doing basically that whole process in birds is going to have to figure out how to do all that stuff in a totally new set of cells. And so this virus will have to check off a lot of evolutionary boxes to adapt itself to us. It has to bind successfully to our cells. It has to get into our cells.