HomeTopicsExpat LivingExpat Battles Exotic Bugs and Parasites in Costa Rica Paradise

Expat Battles Exotic Bugs and Parasites in Costa Rica Paradise

When I first made the move from the northern US to the tropics, it took my immune system a while to adjust. In my first four years south of the Tropic of Cancer (two in the US Virgin Islands, two here in Costa Rica), I contracted cases of undulant fever, dengue fever, a serious heat rash, a few cases of food poisoning, flu that felt more like malaria, and the piece de resistance, an intestinal parasite known here as la babosa, that lodged in my gut and grew and spewed to an ungodly two by five inches (it looks worse in metric, which is how it was recorded on the medical record– five by twelve centimeters). The ulcerating parasite was removed during emergency surgery and left a permanent zipper scar that runs north to south just to the right of my navel.

By that time, I wondered if I ever should have left the northern US, with its four distinct seasons and a solid stretch of sub-freezing weather that helped to keep all those pesky bacterial microbes temporarily at bay. Once I was plunged into the year-round warm weather I had often dreamed about, reality laughed at my untested immune system. Yet following the surgery, I emerged from the physical doldrums of the previous years a new man, with a new, beefed-up immunity to match. Aside from the to-be-expected occasional cases of grippe, I have lived three decades resistant to the maladies that once plagued me.

One ongoing malady I have never completely whipped is the common amoebic parasite or worm or whatever it is that makes me run to the bathroom thirty minutes after my breakfast and leaves me emptied out, with a growling belly and a dull headache. Ticos I know commonly blame lombrices; most dictionaries define lombrices as earthworms, but I think I would feel an earthworm burrowing through the pockets of my intestines. More likely they are roundworms or pinworms or hookworms or ascariasis or flukes. If it’s not a worm, than it’s likely a protozoa such as giardia, cyclospora or maybe entomoeba hystolytica.

I am clueless as to which I might have, or even how to correctly pronounce the protozoa, but I do know that I need to make a trip to the pharmacy– no prescription needed, at our pharmacies you can still get back room injections of anything from Vitamin B-12 for lethargy to ephedrine for an asthma attack. I always ask for the generic, 3 day, 6 pill regimen and they give me six hits of Nitazoxanida and the first day, two pills in, I feel better. I can eat without my nutrients being hijacked and visits to the bathroom are unrushed.

If only there was a pill to take for the damage left by the coloradillos. I spent the weekend on a farm in the Osa, that unspoiled corner of Costa Rica where nature and wildlife still rules supreme, a slice of old Costa Rica that has resisted overdevelopment. Coloradillas are tiny red mites, a pesky relative of spiders, scorpions and ticks. They are found in grassy fields, forests, green areas, along rural shorelines. They attach themselves to the skin with their claws and then inject their saliva. The saliva contains digestive juices that dissolve skin cells, which the coloradilla then eats. After feeding, the coloradilla sheds its skin and leaves a red welt.

While in the Osa, I spent time in grassy fields, forests, green areas, and along rural shorelines. So, a day later, when I look down at my ankles and scratch away at the red welts until they are on the verge of bleeding, it comforts me in some odd way to know that, endless itchiness aside, I was right there in the cycle of nature, contributing to the brief life of a coloradilla.

Trending Now

Costa Rica Raises Alert Around Rincón de la Vieja Volcano

Costa Rica has raised the alert level for communities around Rincón de la Vieja Volcano after scientists detected increased volcanic activity, marking a further...

Costa Rica Braces for Afternoon Storms as Tropical Wave No. 48 Arrives

Tropical Wave No. 48 is expected to cross Costa Rica today bringing a greater chance of afternoon downpours and thunderstorms as already wet areas...

Costa Rica’s Laguna Río Cuarto Loses Visitor Services

Laguna Río Cuarto will remain accessible, but the community organization managing the Costa Rica attraction will stop providing visitor services beginning September 28.

Costa Rica Expands Yellow Fever Vaccine Rule to Eight More Countries

Costa Ricans and legal residents planning trips to several parts of South America and the Caribbean need to check their vaccination records before heading...

Costa Rica Extradites Alleged Meth Ringleader to Florida

Costa Rican authorities moved Farid Alberto Morales Araya, known as “Beto,” from La Reforma prison to Juan Santamaría International Airport early today as they...

Demolished Pavones Restaurant owner releases book about the experience

For nearly two decades, Nicholas Cena has called Pavones, Costa Rica, home. What began as a visit to see his sister eventually became a...

Costa Rica Tripled Tourism Advertising Spending Without Proven Visitor Impact

Costa Rica increased international tourism advertising spending by 223% between 2022 and 2025, but government auditors found insufficient evidence that the additional spending significantly increased visitor arrivals.

Costa Rica Turns to Bryan Ruiz After Firing Fernando Batista

Former Costa Rica captain Bryan Ruiz will take temporary charge of the national team after the Costa Rican Football Federation fired Argentine coach Fernando...

Costa Rica Tech Group Unveils Sweeping AI and Blockchain Law Proposal

A newly formed private technology industry group has unveiled a sweeping legislative proposal that would set rules for artificial intelligence, blockchain, digital assets and...
Loading…

Latest News from Costa Rica

Costa Rica Coffee Maker Chorreador
Costa Rica Car Rentals
Costa Rica Travel Insurance
Costa Rica Travel