Do you often feel unexplained fatigue? Perhaps you are experiencing persistent joint pain, fever-like symptoms, or night sweats that seem to disappear for a while, only to return again? If these symptoms sound familiar, you may be dealing with a condition that is rarely discussed, but critical to understand: Brucellosis. At Nirogi Lanka, we want to help you take control of your health.
What is Brucellosis?
Simply put, brucellosis is an infection caused by the Brucella bacteria. It typically presents with symptoms like fever, joint pain, and profuse sweating. It is important to note that these symptoms often don't just appear and vanish; they frequently follow a recurring, cyclical pattern over an extended period.
Brucellosis is a zoonotic disease, meaning it spreads from animals to humans. Because of its nature, you may hear it referred to by other names such as ‘undulant fever,’ ‘Malta fever,’ or ‘Mediterranean fever.’
Who is at higher risk for Brucellosis?
While brucellosis occurs globally, your risk of contracting Brucella bacteria is significantly higher if you:
- Work closely with animals, such as a veterinarian.
- Work on a dairy farm or a ranch.
- Work as a butcher, in a slaughterhouse, or handle raw meat professionally.
- Are a hunter or involved in dressing game meat.
- Work in a laboratory where you handle Brucella cultures.
- Consume raw meat or unpasteurized dairy products (e.g., milk, cheese, yogurt).
How common is it?
Globally, approximately 500,000 cases of brucellosis are reported each year. However, in countries like the United States, it is much rarer, with only about 100-200 cases reported annually. Regardless of location, if your profession involves frequent animal contact, you should remain vigilant about these risks.
How does Brucellosis affect the human body?
Think of Brucella bacteria as opportunistic. They typically enter your body through your mouth, nose, eyes, or tiny breaks in the skin. Once inside, they move to your lymph nodes or other tissues and begin to multiply steadily. From there, they can spread throughout your system, potentially causing inflammation or damage to vital organs including your heart, liver, brain, and bones.
What are the symptoms?
After exposure to Brucella, it may take two to four weeks—sometimes longer—to develop symptoms. These symptoms can persist or come and go over months or even years. Be mindful of the following:
- Fever.
- Sweating (sometimes accompanied by a distinct, musty odor).
- Joint pain, particularly in your hips, knees, or lower back.
- Unexplained weight loss.
- Headaches.
- Abdominal pain.
- Loss of appetite or gastrointestinal discomfort.
- Psychological symptoms like depression.
- Swollen, tender lymph nodes.
- A persistent feeling of general malaise or fatigue.
What is the cause?
Brucellosis is caused by several species of Brucella bacteria, most notably B. abortus, B. canis, B. melitensis (a common human pathogen), and B. suis. These bacteria are carried by animals, which act as the primary reservoir:
- Cattle
- Goats
- Pigs
- Deer
- Moose and Elk
- Sheep
- Dogs (specifically the B. canis strain).
- Camels
How does Brucellosis spread?
Brucellosis is contracted through contact with infected animals or the consumption of unpasteurized dairy products. Major transmission routes include:
- Drinking raw milk or eating unpasteurized dairy products like cheese or ice cream. Pasteurization effectively destroys these bacteria. Therefore, dairy products from cattle, goats, sheep, or camels are safe if they have been properly pasteurized.
- Handling infected animal tissue or bodily fluids. The bacteria can enter your body through cuts, scrapes, or your eyes, nose, and mouth.
- Inhaling Brucella bacteria. If you work in high-risk environments like laboratories, slaughterhouses, or meat-packing facilities, you are at risk of inhaling airborne particles containing the bacteria.
- Eating undercooked meat.
Human-to-human transmission is extremely rare. However, instances have been documented through:
- Mother-to-child transmission during pregnancy.
- Breastfeeding.
- Sexual contact (though this is exceptionally rare).
Is this a sexually transmitted infection (STI)?
No, brucellosis is not considered a sexually transmitted infection (STI). Although rare reports exist, transmission through sexual contact is extremely uncommon.
How do doctors diagnose it?
Your doctor will diagnose brucellosis by evaluating your symptoms and testing blood, tissue, or other samples for signs of the Brucella bacteria. Because the symptoms of brucellosis often mimic other illnesses, your doctor may also perform additional tests to rule out other conditions.
The gold standard for confirmation is a culture, where your physician grows the bacteria from a body fluid or tissue sample. However, since Brucella is a slow-growing bacterium, obtaining a final result can take several weeks. You may require multiple blood tests over several weeks to monitor for markers of the infection.
What tests are involved?
To confirm your diagnosis, your doctor may order the following:
- Blood tests: A sample will be drawn from your arm. The laboratory will check for Brucella markers like antibodies, antigens, or DNA, or attempt to culture the bacteria from the sample.
- Body fluid analysis: Samples of spinal fluid, joint fluid, or other bodily fluids may be collected to test for the presence or growth of the bacteria.
- Tissue biopsy: Samples from your bone marrow or other tissues may be used to identify or culture Brucella.
- Imaging tests: Depending on the affected areas, your doctor might order X-rays, CT scans, MRI, bone scans, ultrasounds, or an echocardiogram. These provide internal images to assess whether the bacteria have caused damage to your bones or organs.
How is it treated?
Your doctor will treat brucellosis with a combination of at least two antibiotics. You will likely need to continue this treatment for at least 6 to 8 weeks. Depending on your specific condition, other interventions may be necessary, such as draining abscesses or managing related complications.
Common medications for brucellosis
Doctors typically prescribe a regimen including antibiotics such as:
- Streptomycin or Gentamicin
- Rifampin
- Doxycycline
- Trimethoprim/sulfamethoxazole (TMP/SMX)
- Ciprofloxacin
Crucially, you must complete the full course of medication exactly as prescribed by your doctor. Stopping early can cause the infection to return.
Managing your symptoms
While antibiotics work to clear the infection, you may also manage symptoms like fever or joint pain at home. Always consult your doctor before using any over-the-counter (OTC) medications to ensure they are safe and appropriate for your specific health situation.
How can I prevent brucellosis?
Nirogi Lanka recommends following food safety protocols and using protective gear when working with animals to minimize your risk:
- Avoid consuming unpasteurized dairy products.
- Wear appropriate safety gear (gloves, aprons, goggles) when working with animals or animal tissues. This is especially vital for butchers, veterinarians, hunters, farmers, and laboratory personnel.
- Cook meat thoroughly to reach safe internal temperatures. Always sanitize your hands, utensils, and cutting boards after handling raw meat, including game meat, which can carry the bacteria.
Remember, consuming raw, unboiled milk—even in rural areas—carries a significant risk. Always drink milk that has been properly pasteurized or boiled.
What is the prognosis?
Most individuals with brucellosis recover fully with antibiotic treatment, though the process can be lengthy, often requiring weeks or months of consistent medication.
Relapses can occur, especially if antibiotics are not taken as prescribed or if the course is discontinued early. Chronic symptoms like arthritis may persist in some cases. If you develop complications, your healthcare team will provide additional targeted treatments.
What are the potential complications?
If brucellosis is not properly treated for a long duration, the risk of complications significantly increases. These potential complications include:
- Persistent arthritis.
- Enlargement of the liver (hepatomegaly) or spleen (splenomegaly).
- A condition known as chronic hepatosplenic suppurative brucellosis (CHSB), which involves the formation of abscesses (pockets of pus) in your liver and spleen. This can occur even years after the initial Brucella infection.
- Infections and inflammation of the heart (endocarditis), brain or its protective linings (encephalitis or meningitis), the spine (spondylitis), bones (osteomyelitis), or the lower back area (sacroiliitis).
- Inflammation of the testicles and the tubes that carry sperm in men (epididymo-orchitis).
- Miscarriage.
Can Brucella infections in humans be cured?
Yes, human Brucella infections can be effectively treated with antibiotics. However, some complications may result in long-term health effects.
Can brucellosis be fatal?
Death from brucellosis is extremely rare. The fatality rate is estimated to be between only 1% and 2% of all diagnosed cases.
How should I take care of myself if I have brucellosis?
If your doctor confirms you have brucellosis, even if you begin to feel better, ensure you finish your entire course of prescribed medication exactly as directed. Stopping your antibiotics prematurely can lead to a recurrence of the infection. Contact your doctor immediately if you develop new symptoms or if your existing symptoms worsen.
When should I see a doctor?
If you experience symptoms of brucellosis, especially if your occupation or hobbies put you at higher risk for this infection, it is essential to consult a healthcare professional.
When should I seek emergency care (ER)?
Seek immediate emergency medical attention if you experience severe symptoms, such as:
- High fever (above 103°F / 39.4°C).
- Severe abdominal pain.
- Confusion or significant changes in mental status.
What should I ask my doctor?
During your consultation, you may want to ask the following questions:
- How long will the treatment course last?
- How should I properly take my medication?
- How can I manage my symptoms at home?
- When should I return for a follow-up appointment?
- What specific warning signs should prompt me to go to the emergency room?
Nirogi Lanka Take-Home Message
Brucellosis is a relatively uncommon bacterial infection that often begins slowly and can persist for a long time. Because its symptoms mimic many other conditions, it is vital to see a doctor for an accurate diagnosis and appropriate treatment. While brucellosis is generally not fatal, it can affect your bones and internal organs, so it is important to monitor your symptoms closely. Do not hesitate to contact your doctor if you develop new symptoms or have concerns about your recovery.
👩🏽⚕️ Frequently Asked Questions (FAQs)
💬 Is Brucellosis spread through milk?
Yes. This infection is primarily transmitted by consuming unpasteurized raw milk or cheese from infected goats, sheep, cattle, or camels carrying the Brucella bacteria. Additionally, individuals working in farming environments can contract the infection if they come into contact with the blood or aborted fetal tissues of infected animals through open skin wounds.
💬 Why is it called "Undulant Fever"?
A hallmark of this condition is that your fever does not remain constant throughout the day. You may feel fine in the morning, but as evening approaches, you might experience sudden, high fevers accompanied by chills and night sweats. This fluctuating, "wave-like" pattern of fever is why it is known as Undulant Fever. Without treatment, these symptoms can persist for months.
💬 Can this cause infertility in men?
If left untreated, the Brucella bacteria can spread throughout your body. In men, it can lead to epididymo-orchitis—an inflammation of the testicles—which can impair fertility. This is why strict, long-term adherence to a prescribed combination of antibiotics (usually for 6 weeks or more) is essential for your recovery.
Tags: Brucellosis, Nirogi Lanka, Zoonotic diseases, Bacterial infection, Fever, Joint pain, Unpasteurized milk
