Ticks are taking over the United States. Due to climate change, changing land use, and an explosion in the deer population, ticks have been expanding their territory and infecting more people than ever. They carry pathogens that cause everything from Lyme disease to the red meat allergy-inducing Alpha gal syndrome. In some cases, tick bites can be fatal.

Ticks usually lurk in the tall grass in wooded areas. That means going on a hike or even just hanging out in your backyard or a park can expose you to a tick bite. In many parts, of the country fear of ticks is changing how people live their lives, including the way they dress, how they enjoy their hobbies, or even whether they spend much outdoors at all. 

The tick surge is catching public health officials off guard. Emergency room visits due to tick bites are the highest they’ve been since 2017. In spite of the uptick, most public health departments still focus on lowering the population of mosquitos in their areas over ticks. 

Climate reporter Jonthan Mingle says we can fix this problem. As Mingle explained in a recent New York Times op-ed, encouraging the public to do tick checks and use bug spray is a part of the solution, but we’re leaving a bunch of larger interventions on the table. Mingle joined Today, Explained co-host Sean Rameswaram to explain why ticks are expanding their range and what we can do about it. 

Below is an excerpt of their conversation, edited for length and clarity. There’s much more in the full podcast, so listen to Today, Explained wherever you get your podcasts, including Apple Podcasts, Pandora, and Spotify.

We covered Lyme disease and tick bites on this show back in 2018 because the tick situation was getting out of hand. How much more out of hand has it become since then?

You know some experts I talked to used the word exponential. So what’s happening is that some of these tick species are spreading into areas where people aren’t familiar with them, doctors aren’t familiar with them. Thanks to warmer winters, ticks are expanding their hunting season. You may have a day that’s like 40 degrees in January, ticks are out looking for you, waiting for you to walk by and grab on and grab a meal. 

In 2024, a pilot named Brian Weitzel, father of three in northern New Jersey, had a hamburger, at a barbecue, went home to mow his lawn, and a few hours later was unresponsive on the floor and he died that night. His family was left in shock, of course, trying to figure out why he had died. And it turned out that he had likely been bitten by the lone star tick and had developed an allergy to red meat. This is referred to as Alpha-gal syndrome, which is just the latest entrant into the files of all the many ways in which tick bites can make us sick. The most familiar one, of course, is Lyme disease. Each year, about half a million people are treated for Lyme disease. It’s the fastest growing vector-borne disease in the US. Cases have more than doubled over the past decade, and those cases are mostly as a result of getting bitten by the black-legged tick or the deer tick. The thing is both of these ticks — and many other ticks that are also marching northward and westward and expanding their empires rapidly across North America — they can deliver all kinds of pathogens.

They’re claiming more and more of the map, and they’re claiming more and more of our psychic map right? I tell people I’m not a tick expert, although I’ve talked to a bunch of them, but I’ve become a tick expert in the sense that I am very familiar with tick paranoia and how it can keep you from venturing out into the places you love: hiking paths or picnic grounds or parks. And so that was part of the story I wanted to write about, too — Why are we letting the ticks keep us, if not out of these places that we need and love, why aren’t we fighting back?

And why is it? Are we not fighting back against the ticks?

Not really. I mean, this is one of the surprising takeaways from my reporting is that we’re barely even trying. One way of understanding that is to think about two numbers. One number is 90 percent. 90 percent of vector-borne disease cases in the US are from ticks.

90 percent?

Yeah. And yet despite the fact that 90 percent of cases of vector-borne illness come from tick bites, if you look at what local city, county health agencies do in terms of vector control, 80 percent of what they do is mosquito control, and only about 10 or 11 percent of these local health agencies around the country do any kind of tick control. So why is that? It’s a familiar story in the public health world. It’s not enough funding or policy support for trying out, testing, deploying new approaches to controlling ticks.

Even though people are dying?

We’re just kind of taking for granted that, ‘Oh, well, what can you do? You just tuck your pants in and spray some insecticide on your boots and that’s all you can do.’ It’s like, well, actually we have a long history of going to war with mosquitoes. Before there was tick control, there was mosquito control. The CDC was founded with the sole mandate in 1946 of wiping out malaria and fighting mosquitoes. 

It feels like they lost that fight because in my neighborhood you can’t go out between the hours of seven and nine o’clock.

The mosquitoes haven’t gone away, but malaria did for the most part. You know, in talking to experts today, including folks at the CDC, they told me that there’s a suite of tools we could be using if we wanted to get serious about fighting ticks. As one veteran tick expert at the CDC told me, if you want to make a dent in this problem, you have to get to the deer. The deer are the engine driving a lot of these tick species spreading, and we just have way more deer than we did decades ago, especially in the eastern US and suburban parts of America. So how do you get to the deer? I had people in the comments section of my piece saying the clear answer is just we should all be hunting deer. But in talking to the experts, they’ll tell you it’s not really a feasible solution. You would have to knock deer populations way down to make a dent in the tick populations. 

What is more promising is a combined approach of stuff like vaccines. There are people developing vaccines that you could deliver to deer or to rodents, which are another important host for these ticks so that when the tick bites them, they’ll die. That, I learned from talking to folks who do this kind of research for a living, is a more promising avenue for controlling ticks than all of us picking up crossbows and becoming deer hunters.

So why is it that we’re not doing anything?

What I heard from experts is that we’re not even funding this research in a serious way. We do this stuff for mosquitoes. People don’t realize it, but your local county health agency, they go out and they find where the mosquito breeding grounds are and stagnant pools the water and they treat it. It takes this sustained quiet effort. 

We saw the consequences of not doing that recently. This is a bit tangential, but screwworm. Screwworm was this flesh eating larval pest that devastates cattle herds that it was eradicated in the US in 1966, and it was kept at bay by the vigilance of people at USDA and USAID who ran these programs to release millions of sterile screwworm males out of airplanes. It created this wall that kept the screwworm from coming into the southern US. And probably if we stopped doing the mosquito control at a local scale, we’d see more cases of dengue fever, West Nile virus, and all these other rare but serious illnesses that climate change is making more of a threat here in the US.

Could you just practically help people understand how they can protect themselves in the absence of, I don’t know, a functional government?

Doing tick checks. And we do it in my household pretty much daily when you come home, do a thorough tick check, throw your clothes in the dryer. Ticks hate heat. And some people like to use permethrin spray, which is this insecticide that’s designed to kill ticks on your boots or your pants when you go out for a hike. Researchers have known these things are really effective if you keep doing them, if you stay vigilant. And all it takes is that one time, that one time you go out for a hike and you come back and you forget to do the tick check. 

So we need those kinds of personal measures of vigilance and protection, but we still need to kind of push for a bigger public health response to this. The ticks are going to keep spreading into the calendar, too, in the sense that as winters get warmer, more and more days of the year when you’re outdoors, you’re going to encounter ticks who are hungry, and they’re looking for you. 

Last week, House Democrats voted on an amendment that would have cut $3.3 billion in annual US military aid to Israel from a State Department funding bill. The amendment was brought to the floor by Rep. Thomas Massie, an outgoing Republican from Kentucky. It failed 314-104, but 103 Democrats — nearly half of the House Democratic caucus — supported it, signaling a significant shift in the party’s longstanding support for aid to Israel.

In 2024, a similar vote came up in the House to cut military aid to Israel. Then, just 37 House Democrats voted for the measure. Now, two years later, 103 House Democrats voted to cut funding. That shift in support was accelerated after the October 7 Hamas attacks and Israel’s subsequent military campaign in Gaza, which has killed large numbers of Palestinian civilians. The debate is also playing out in Democratic primaries across the country. In New York and Colorado, Democratic socialist candidates who have sharply criticized Israel and opposed continued US military aid recently won House primaries.

Historically, Jewish Americans have overwhelmingly identified with and voted for the Democratic Party, while Democratic lawmakers have generally supported Israel and US military assistance to the country. In 2016, the Obama administration signed a 10-year memorandum of understanding (MOU) with Israel, committing the US to seek $38 billion in military assistance for fiscal years 2019 through 2028. Congress must vote to approve this funding, so the shift in Democratic support of Israel could have real consequences.

There is still a very strong support for Israel among many House Democrats, but the shifting views are notable. House Minority Leader Hakeem Jeffries opposed the Massie amendment, arguing that it was overly broad and could jeopardize humanitarian assistance. But in a letter addressed to his House colleagues he also called for a “major reset” in US policy toward what he described as Israel’s “far-right Netanyahu government.”

Today, Explained host Sean Rameswaram spoke with Democratic Rep. Brad Schneider, who represents Illinois’s 10th Congressional District, and remains a strong supporter of Israel.

Below is an excerpt of the conversation, edited for length and clarity. There’s much more in the full podcast, so listen to Today, Explained wherever you get podcasts, including Apple Podcasts, Pandora, and Spotify. 

Can you walk us through last week’s vote? You voted against the measure to cut aid to Israel, and a lot of your colleagues obviously did not. How did that play out for you?

Growing up in the ’60s, ’70s, and for the last 65 years, I fundamentally believe that the US-Israel relationship is important. I also believe that the aspiration for peace in the Middle East, not just between Israelis and Palestinians, but broadly throughout the region, is something that is in the United States’s interest and the interest of the people in the region. So this is not a new issue to me, and it’s something I thought long and hard about. 

Tom Massie doesn’t believe any of that. His intentions with this amendment were anything but pure. It was hastily crafted and poorly written. And one of the biggest issues with it is not only does it [not] address this 10-year memorandum of understanding, something negotiated by President Obama eight years ago, but there are also two years left on the MOU. 

It was a messaging bill and nothing more, and it was a negative message. I voted no because I think if we’re going to move toward peace, we need to do so in a constructive way. A lot of my colleagues were saying we need to send a message to the Netanyahu government.

“I have to hold onto that optimism for the prospects of peace because the alternative is too dark.”

I’ve been extremely critical of this government, their failure to address the settler violence in the West Bank, the failure to plan for a day-after in Gaza following what was a horrific war. If we’re going to move towards peace, if we’re going to find a path where Israelis and Palestinians can live side by side and the region can have the peace they deserve. Because we’re not just talking about Israelis and Palestinians; there’s progress being made between Lebanon and Israel in giving Lebanon, the people of Lebanon, the liberty and freedom they all deserve. 

Can I ask you if you still take money from AIPAC? And if so, how much?

I appreciate the support I get from people who care about the issues that I advocate for. So people who are pro-Israel, pro-US-Israel relationship are likely to support me because I’m pro-US-Israel, pro-US-Israel relationship. I’m also pro-addressing gun safety and reducing gun violence in this country. So I get the support of those groups. The support I get doesn’t determine my positions. I think my positions determine who supports me. 

Has your position on Israel shifted at all since October 7th, or at any point in your political career? And if so, can you tell us how?

So my position hasn’t changed because I’ve always been committed to promoting peace between Israelis and Palestinians and finding a path where both can live together, which I believe ultimately is two states: a Jewish democratic state of Israel, and a Palestinian state living side by side. My frustration with the current Israeli government has grown and continues to grow. Every conversation I have with them, whether it’s the US ambassador to Israel, whom I’ve had the privilege of working with many times, or my meetings with Prime Minister Netanyahu. I’ve had an engagement with the prime minister going back now for almost 30 years. But in the last several years, every single conversation I have with them talks about the need to address settler violence, the need to get humanitarian aid.

One of the things that I am proud of and will say loudly and proudly is that immediately after October 7th, as the war began, my team and I worked hard to push for humanitarian aid into Gaza to do everything we could to make sure that the civilians who were always caught in the middle of any war wouldn’t suffer more than they did. And the suffering was horrific. And I did challenge Israel when they made what I’ll call ill-conceived, ill-advised, in some cases illegal decisions to deprive humanitarian relief from entering Gaza. We pushed hard, and we worked with the Egyptians to get the Rafah crossing open. We pushed the Israelis to open the Karam Shalom crossing. And to not just get aid to those crossings, but get aid into and across the territories within Gaza.

Why are you so optimistic about the situation? 

I am always going to be optimistic. I have to hold onto that optimism for the prospects of peace because the alternative is too dark. And let’s separate the issue for folks living in the region and the folks living here. And for the Israelis and Palestinians, these are two peoples who are totally traumatized — traumatized not just over the last couple of years, but for decades. So I recognize the trauma that Israelis have and are experiencing, and I recognize the trauma that the Palestinians have and are experiencing. And that’s part of what I feel is my obligation: to hold onto that optimism and speak to a better future and work to try to find ways to bring the parties on both sides of the issue together to make the hard choices and take the risk to get to a path to peace.

So the reason I’m holding onto optimism — and it’s not 24/7; I have my moments when I am down and where I feel like the hill we’re climbing is just too steep — is you take a deep breath and you dig deep, and you say, I can’t give up on hoping and working towards peace because otherwise peace is never going to happen. And I want to find people who are like-minded.

And that is not just on the Israeli side of the equation. We have to find people on the Palestinian side, and for those on the Palestinian side, we have to find Israelis. And I meet, and I spend time with them on a regular basis. They come to my office. When I’m in the region, I talk to them. We have to strengthen and empower those voices who believe that peace will only come when the Israelis see the Palestinians as a people worthy of engagement and a shared future, and the Palestinians see the Israeli as a people worthy of engagement and a shared future, and recognize that until they get there, there’s no future for either side. We’ve got to have a path where both are pointing in the same direction.

Fermented food is the hottest new trend in the halls of the White House. Members of President Donald Trump’s Cabinet are reportedly walking about with jars of sauerkraut in the hopes that it will give them glowing skin and tiny waists. 

Wall Street Journal’s Liz Essley Whyte told Today, Explained co-host Sean Rameswaram that “Health Secretary Robert F. Kennedy Jr. Commerce Secretary Howard Lutnik, Transportation Secretary Sean Duffy, and Vice President JD Vance are all on this eat-a-lot-of-steak-and-sauerkraut diet.”

So, should we all be eating jars of sauerkraut? Or are ferments just the new Florsheims?

Below is an excerpt of their conversation, edited for length and clarity. There’s much more in the full podcast, so listen to Today, Explained wherever you get your podcasts, including Apple Podcasts, Pandora, and Spotify.

Is there a name for this diet?

Kennedy calls it the carnivore diet. I think people mean different things when they say that, but for him, it includes a lot of yogurt, a lot of kimchi or sauerkraut, a lot of steak, a lot of eggs. Kennedy now travels with sauerkraut. His wife has said that he has asked her to carry it in her purse for him, and she has said, “I actually cannot,” which is an amazing phrase. It seems they all think their skin is glowing, and people online have commented that JD Vance is looking good.

Are we sure it’s not Wegovy?

We don’t have any public knowledge of that, but we do know that he is eating eggs, sauerkraut, pickles, blackberries, and raspberries for lunch pretty often — and beef and lamb with sauerkraut for dinner. Then, when he’s on Air Force Two, he snacks on beef jerky and maybe eats a hamburger with cheese, no bun, and a side of fermented vegetables.

Now that you’re mentioning the full spectrum of JD Vance’s diet, it’s kind of reminding me of their new food pyramid. Is this part of that?

Earlier this year, Kennedy and the other health officials like to say they flipped the food pyramid. They recommended a lot more fruits and vegetables, red meat — which was controversial — and whole grains, and whole milk, that kind of thing. They also, and for the first time in the nation’s dietary guidelines, recommended fermented foods, which was something that was actually agreed upon by a lot of people, and they thought that was a good part of this, even if they had qualms about the red meat recommendations, because those can introduce more cardiac risk and risk of bad cholesterol.

How widespread is this in the White House? Does it go up all the way to the top, to the president?

Given what we have seen of his recent public dieting, I don’t think so. At the Knicks game, he was eating pizza and french fries, and, you know, he still has his Diet Coke button on his desk where he just pushes it and a Diet Coke comes. Kennedy said, once said on a podcast about him, “I don’t know how he’s alive.” 

Does the science back this up, or is this some kind of quackery that ferments can make your skin healthier and help you lose weight?

I don’t think there are a lot of good studies that show exactly that sauerkraut can help you lose weight, but there have been a number of studies that have shown health benefits. Researchers have generally agreed that sauerkraut and other fermented foods can help with digestion and inflammation. There was a 2025 study from UC Davis that suggested fermented cabbage could protect your gut and protect against illness. Basically, they found that the intestinal cells do better with sauerkraut. They help maintain the integrity of those intestinal cells. And, in general, that has a lot of other good health effects. Mainstream scientists, dieticians, are pro-fermented veggies. This is not something that is hotly debated.

Most people in the scientific community are realizing there’s a lot of good fresh science out there about how important your gut really is in your overall health. The part of the diet that is a little more controversial is the focus on red meat. Obviously, that comes with some cardiac risk and some cholesterol risk. That is why when the new dietary guidelines came out and recommended more of that for Americans, that part, in particular, made some dietitians a little upset.

Do you think fermented foods could help people with this parasite that gives you explosive diarrhea?

I personally have not seen any studies on whether fermented foods help with explosive diarrhea, but let me know if you find one.