These are the days when I’m glad to know some really good epidemiologists. The planet is warming, global travel is surging, and bad buggies are on the move. No, not these kinds of buggies:
Nope. I’m taking about these buggies:
I thought I might post some updates from the aforementioned really-good-epi folks, as it’s sometimes overwhelming to try to keep up with global health news and hard to know which sources to trust. I’m not a doctor (not the medical kind, anyway), but my posted updates are from sources *I* trust– international news outlets, the WHO (World Health Organization), and YLE (Your Local Epidemiologist) substack (which pulls its info from the most reliable technical sources).
So, in titular order:
First: I posted recently about the hanta virus outbreak on a ship traveling from South America to Europe: Bad news/good news about the hantavirus outbreak.
According to the European CDC, as of 26 May there are a total of 13 cases (11 confirmed) of hantavirus. One new case has been confirmed since the last update. There are no new deaths. All quarantined persons in North America are still negative. There’s a long (45 day) incubation period, but we’re at the median period now. This means if you weren’t on that ship, you are almost certainly in the clear. Color me not worried.

Second: There’s an Ebola outbreak in The Democratic Republic of Congo (DRC) and Uganda. According to YLE, there are more than 1000 cases so far in DRC, which experts believe is an undercount. Why? For wonky epidemiological reasons:
- positive test rate is 50%
- At most 20% of contacts are being traced right now
- They’ve only been really testing for a week, and it’s a lot-a-lot of cases for one week
- Cases are spread out over 16 different health zones, so containment is harder
You might be wondering, what are the Centers for Disease Control and the US government doing to help contain this outbreak and support and treat those who are affected by Ebola (which has an average case fatality rate of 50%)?
During the 2013–2016 Ebola outbreak in West Africa, the US and Canadian governments played major roles in sending public health teams, supplies, health workers, setting up treatment centers, and providing support, along with the WHO and dozens of other countries. More than 11,000 people died of Ebola, with another 17,000 surviving it.
In 2026, the situation is quite different. Canada is providing more than $8M in international assistance funding though a bunch of governmental and non-governmental organizations. This is in addition to its annual $150–200M in foreign aid. See here for latest details.
The US government, after cutting foreign aid to the DRC by 75% (affecting its public health and other necessary infrastructures), is releasing $80M to various organizations overseen by the UN and various NGOs (non-governmental organizations).
However, the big emphasis by the Trump administration is that no American contracting Ebola (including those health workers its sending to Africa) will be returned to the US for treatment (in one of the several world-class health centers with top-level bio-containment.) Instead, according to the New York Times,
The Trump administration plans to send to Kenya U.S. citizens exposed to the Ebola virus rather than bring them home for observation and treatment, according to three people with knowledge of the plans.
The approach is a stark contrast to the way previous administrations responded to outbreaks, during which health care workers and other U.S. citizens exposed to the virus were brought home to be treated at specialized medical units. The administration this month flew an American doctor who developed symptoms to a hospital in Germany, and transported six other Americans for monitoring in Germany and the Czech Republic.
According to the substack by Dr. Craig Spencer (the physician who got Ebola in 2014 while working for MSF/Medicins Sans Frontieres/Doctors Without Borders and WAS transported to the US for treatment, and recovered):
The government is training a few dozen Public Health Service officers — uniformed members of the U.S. commissioned corps — to deploy to Kenya to staff it. These are people we send under orders, often to crises, disasters, and outbreaks. And under this plan, if one of them is exposed, or falls ill, the government apparently does not intend to bring them home either.
So, to sum up: for this Ebola outbreak, the risk to the North American public is very very low. But, the risk to global health overall is substantial. Also, the risk to American and other health workers, deployed military doing humanitarian work, and UN personnel os higher than it needs to be because the US is refusing to take care of them in our own world-class medical facilities.
So, am I worried about me or others in North American getting Ebola? No. Am I worried about the damage my country’s leaders are doing to global healthcare capacity, the mission of international health workers, and citizens of all countries affected by this outbreak? YES. You bet I am.
Third and finally, there are the ticks. It turns out that tick numbers are declining in the Northeast and Midwest at this point in 2026. YLE annoted this very nice CDC graph to show where we are:

However, tick-borne diseases are in general on the upswing, so we all need to be careful. Here are more YLE tips:
Keep enjoying the outdoors! But if you’re in a tick-prone area, take that extra minute to do a tick check. The most important thing is removing the tick properly (use fine-tipped tweezers, grab close to the skin, pull upward, no twisting, no Vaseline, no matches). Then watch for symptoms: fever, rash, fatigue, joint aches. If you find an attached tick and are in a high-risk area for Lyme disease, it’s worth calling your doctor if it was attached for more than 36 hours.
So, am I worried about ticks? Always. I live in tick heaven here in New England. But this means I am careful to wear proper repellents (DEET for skin and Permethrin for clothing for me; you do you here), and I also check carefully after being outside. Will this keep me from going outside? Certainly not. And I hope it won’t slow down your outdoorsy summer, either.
Happy Friday, y’all!




















