Are you aware of the African Sleeping Sickness – Trypanosomiasis? | Nirogi Lanka

Have you ever heard of the rare, serious condition found in certain parts of Africa? Doctors refer to this as Trypanosomiasis. Many people commonly call it “African Sleeping Sickness” because one of its hallmark symptoms is an overwhelming, persistent urge to sleep as the condition progresses. In reality, this is a severe infection caused by a parasite. At Nirogi Lanka, we want to help you understand exactly how this condition works and what you should know about it.

What is Trypanosomiasis?

Simply put, Trypanosomiasis is a serious parasitic infection that can spread throughout different parts of your body. It typically affects:

• Your skin
• Your blood
• Your lymph nodes
• Your brain and the fluid surrounding your brain and spinal cord, known as cerebrospinal fluid.

This disease is transmitted through the bite of a specific type of fly found in Equatorial Africa, called the Tsetse fly. Tsetse flies are large, yellowish-brown or dark brown blood-feeding insects, typically ranging from 0.2 to 0.6 inches (about 6 to 16 mm) in length. Equatorial Africa refers to the region crossing the equator below the Sahara Desert. Symptoms may appear anywhere from a few weeks to several months after infection.

Most importantly, while Trypanosomiasis is a curable condition, it can be fatal if left untreated.

This condition is also known by several other names:

• African sleeping sickness
• African trypanosomiasis
• Human African trypanosomiasis (HAT)

Why is it called “African sleeping sickness”?

There are two primary reasons for this name. First, the parasites are transmitted by the Tsetse fly native to Equatorial Africa. Second, a hallmark of the disease is how it affects your sleep cycle, often causing persistent and extreme daytime sleepiness.

How common is this disease?

Historically, Trypanosomiasis was quite prevalent. According to the World Health Organization (WHO), about 30,000 cases were reported in the late 1990s and early 2000s. However, thanks to rigorous control measures implemented over the last two decades, the number of cases has dropped dramatically. By 2020, there were fewer than 700 reported cases globally.

What are the symptoms of Trypanosomiasis?

Symptoms develop gradually. While this disease is not native to our region, it is important to be aware of the following signs:

• A swollen, discolored (red, purple, or brown) lump at the site of the fly bite, which may be painful.
• Recurrent fever.
• Chills.
• Headaches.
• Muscle aches.
• Joint pain.
• Skin rash.
• Anemia (low red blood cell count).
• Swelling of the face and/or lymph nodes.
• Drowsiness and difficulty staying awake.
• Confusion or difficulty concentrating.
• Difficulty walking or speaking.

Without appropriate medical treatment, Trypanosomiasis can lead to seizures, coma, and even death.

What causes Trypanosomiasis?

This condition is caused by two types of microscopic, single-celled protozoa:

• Trypanosoma brucei gambiense: Responsible for more than 90% of cases.
• Trypanosoma brucei rhodesiense: Responsible for less than 10% of cases.

How is this disease transmitted to humans?

Humans contract Trypanosomiasis through the bite of an infected Tsetse fly. These flies acquire the parasites from infected animals (such as cattle, sheep, goats, pigs, horses, or camels) or from other infected humans.

Is Trypanosomiasis contagious?

It is primarily transmitted via fly bites. However, if you are pregnant, the infection can be passed to your baby.

Additionally, while extremely rare, transmission can occur through blood transfusion. Please note that healthcare providers follow strict safety protocols to ensure that all blood donations are screened and safe.

Who is most at risk for this disease?

Tsetse flies are diurnal, meaning they are active during the day. They primarily inhabit wooded areas and savannas (a landscape combining forest and grassland characteristics) in equatorial Africa. If you spend time in these specific regions, your risk of contracting Trypanosomiasis increases significantly.

How is Trypanosomiasis diagnosed?

Your doctor can diagnose Trypanosomiasis by reviewing your medical history, discussing your symptoms and recent travel history, and conducting a thorough physical examination.

Following this, your doctor may order specific diagnostic tests to confirm the infection.

What diagnostic tests are used?

These tests help detect Trypanosomiasis:

• Blood tests: A healthcare provider will use a thin needle to collect a small blood sample from a vein in your arm. This sample is then examined under a microscope to check for the presence of parasites.
• Lymph node fluid test: A physician may use a needle to extract fluid from a swollen lymph node to screen for parasites.
• Spinal tap (Lumbar puncture): In this procedure, a doctor inserts a needle between the vertebrae in your lower back to collect cerebrospinal fluid. They analyze this fluid for the presence of parasites or signs of inflammation, such as an elevated white blood cell count.

Is Trypanosomiasis curable?

Yes, with early diagnosis and proper treatment, Trypanosomiasis is fully curable. Your treatment plan depends on the specific species of Protozoa that caused the infection and whether the parasite has spread to other parts of your body, particularly your brain.

• If the infection has not spread to your brain or cerebrospinal fluid, your doctor may prescribe:
• If you have (Trypanosoma brucei rhodesiense): Suramin.
• If you have (Trypanosoma brucei gambiense): Fexinidazole or Pentamidine.
• If the infection has reached your brain or cerebrospinal fluid, your doctor may prescribe:
• If you have (Trypanosoma brucei rhodesiense): Melarsoprol.
• If you have (Trypanosoma brucei gambiense): Fexinidazole, Eflornithine, Nifurtimox, or Melarsoprol.

In some cases, corticosteroids may be administered to reduce inflammation, joint pain, and muscle aches.

These medications may be given as oral pills or intravenously. It is vital that you complete the full course of medication prescribed by your doctor, even if you start feeling better. Failing to do so can lead to a relapse, which makes future treatment much more challenging.

What happens after treatment? How do we monitor recovery?

There is no single test that definitively proves the parasite has been completely cleared from your body. Therefore, your doctor will monitor you for approximately two years following treatment to watch for any recurrence of symptoms. If symptoms return, they will repeat blood and cerebrospinal fluid tests to check for the presence of the parasite.

How quickly will I recover after treatment?

Your healthcare team is the best source for this information. Based on the severity of your specific infection, they can provide an estimated timeline for your recovery.

What happens if I have Trypanosomiasis?

With early diagnosis and appropriate treatment, your outlook for recovery is excellent. Most patients who receive treatment within two to three weeks of infection experience a full recovery.

However, if left untreated, Trypanosomiasis can be fatal. While treatment is still possible after the parasite reaches the brain and cerebrospinal fluid, it becomes much more complex and the prognosis for survival decreases.

What is the survival rate for Sleeping Sickness?

When treated promptly and correctly, over 95% of individuals with Trypanosomiasis survive.

What is the Outlook for Trypanosomiasis?

Efforts to reduce the number of Trypanosomiasis cases over the past 20 years have been highly successful. The World Health Organization (WHO) has set a target to eliminate Trypanosomiasis as a public health threat by 2030. They aim to achieve this through several key strategies:

• Increasing funding for research.
• Developing improved diagnostic testing methods.
• Providing prompt, effective treatment.
• Limiting contact between Tsetse flies and humans.

Can Trypanosomiasis be prevented?

Yes. If you are traveling to areas where this disease is prevalent, you can protect yourself from Tsetse fly bites by following these recommendations from Nirogi Lanka:

• Avoid traveling to high-risk areas.
• Wear heavy, protective clothing, such as long pants and long-sleeved shirts, as Tsetse flies can bite through thin fabric.
• Choose neutral-colored clothing. Tsetse flies are attracted to bright and dark colors. Opt for white, gray, cream, or beige tones.
• Avoid resting near bushes or shrubs during the day. While Tsetse flies are active during the day, they often seek shade in these areas during the hottest parts of the day.
• Install screens on windows and doors.
• Stay indoors during the peak hours of Tsetse fly activity.
• Apply approved insect repellents or chemicals to your clothing, tents, and netting.
• Sleep inside a fine-mesh tent or under protective netting. Ensure your tent is fully zipped at all times.
• Check vehicles(cars or trucks) for Tsetse flies before entering, as they are attracted to movement and dust.

Is there a vaccine for Trypanosomiasis?

No, there is currently no vaccine or preventative medication available for Trypanosomiasis.

How should I take care of myself if I have Trypanosomiasis?

If you feel unwell after returning from an area where Trypanosomiasis is common, it is vital to see a doctor immediately. Even if you do not recall being bitten, inform your physician about your travel history. To ensure a full recovery, strictly adhere to your prescribed treatment plan.

Additionally, resting well and staying hydrated by drinking plenty of fluids will support your recovery process.

When should I see a doctor?

If you have spent time in areas with a risk of Tsetse fly bites and develop symptoms of Trypanosomiasis, seek medical attention promptly.

Following treatment, you must attend regular check-ups—typically every six months for at least two years. If there are any signs of a recurring infection, your doctor may perform tests on blood and cerebrospinal fluid.

When should I go to an Emergency Room (ER)?

If you experience any of the following severe symptoms, go to the nearest emergency department immediately, or call 911 (or your local emergency services number):

• Fever exceeding 103°F (40°C).
• Confusion or disorientation.
• Seizures.

Questions to ask your doctor

When you visit your healthcare provider, you may want to ask the following questions:

• How exactly did I contract Trypanosomiasis?
• If this is not Trypanosomiasis, what other conditions could explain my symptoms?
• How serious is my condition?
• What tests will you perform to diagnose Trypanosomiasis?
• What treatment do you recommend?
• Are there side effects associated with the recommended treatment?
• When should I expect to start feeling better?
• What else can I do to speed up my recovery?
• Should I watch for any new or worsening symptoms?
• When should I return for follow-up testing?

Can you get Trypanosomiasis more than once?

Yes, you can contract Trypanosomiasis more than once. Successfully recovering from a previous infection does not provide you with immunity, meaning you remain susceptible to reinfection.

What is the difference between African Trypanosomiasis and American Trypanosomiasis?

American Trypanosomiasis is more commonly known as Chagas disease. This is a distinct parasitic infection caused by the parasite Trypanosoma cruzi. It is primarily transmitted to humans through contact with the feces of infected Triatomine bugs, often referred to as “kissing bugs.”

Key Takeaways (Take-Home Message)

Let’s summarize the most important points about Trypanosomiasis for your health:

• It is a parasitic infection spread by the bite of Tsetse flies, found in specific regions of Africa.
• While it is treatable if caught early, it can become life-threatening if left unaddressed.
• Early symptoms may include fever, muscle aches, and swollen lymph nodes, potentially progressing to severe daytime sleepiness and confusion.
• If you are traveling to endemic regions, taking precautions against fly bites is essential.
• If you develop any symptoms after visiting such regions, seek medical advice immediately.

We hope this information helps you stay informed. Stay safe and healthy with Nirogi Lanka!

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Tags: Trypanosomiasis, African Sleeping Sickness, Tsetse fly, parasitic infection, travel health, symptoms