261 results for author: Dr. Daniel Cameron


Could a blood transfusion transmit Lyme disease?

Researchers now know that the tick-borne disease Babesia can be transmitted unknowingly through blood transfusions. But what about transfusion-associated Lyme disease? The risk is unlikely, but it is a concern worth considering, writes Pavia and Plummer. [1]

How effective is Permethrin-treated clothing in preventing tick bites?

Permethrin-treated clothing is marketed as a product that will help repel insects and prevent tick bites. Several studies, including one by the Centers for Disease Control and Prevention (CD), have demonstrated the effectiveness of Permethrin-treated clothing in causing ticks to become incapacitated and fall off the fabric. [1]

Southern nymphal deer ticks in hiding?

Researchers have identified adult blacklegged (Ixodes scapularis) ticks in the southern United States, specifically looking in Texas. Using the collection method of flagging and dragging, investigators found 656 adult ticks between October and April. But nymphal ticks were nowhere to be found.

Lyme disease mimics prosthetic joint infection following knee replacement

Lyme disease symptoms can mimic periprosthetic joint infection (PJI), which is caused by typical bacterial organisms. In their article “Lyme Disease: A Potential Source for Culture-negative Prosthetic Joint Infection,” Collins and colleagues describe the case of an elderly man who underwent surgery to treat what doctors initially believed was an infection of his prosthetic knee. [1]

Delayed onset of Babesia highlights importance of follow-up visits

A recent case report published in the British Medical Journal demonstrates the importance of monitoring patients with Lyme disease even after initial treatment, as co-infections can surface at a later stage.

Don’t be misled: patients can have both mono and Lyme disease

Mononucleosis (EBV) and Lyme disease share similar characteristics, making an accurate diagnosis difficult. Each condition causes non-specific symptoms including fatigue, fever, myalgia, arthritis, headaches, neck soreness and swollen or enlarged lymph nodes. And each greatly impacts children. While mono is a common childhood illness,  25% of all Lyme disease cases in the US involve children. 

Infected ticks prevalent in urban areas in the United Kingdom (UK)

The prevalence of vector-borne diseases in Europe, including the UK, has changed dramatically over the past 15 years. Today, there are regular outbreaks of West Nile, chikungunya, and dengue viruses. Malaria has returned. The number of Lyme disease cases is rising and tick-borne encephalitis virus is expanding to the northern regions of Europe. Meanwhile, new pathogens continue to be discovered, such as Borrelia miyamotoi and various tick-borne rickettsiae.

First-line combination therapy for tick-borne illnesses

Black-legged ticks can carry and transmit multiple pathogens causing a range of different diseases including Lyme disease, Babesia, anaplasmosis, Borrelia miyamotoi, ehrlichiosis and the Powassan virus. In fact, an individual can develop several diseases from just a single tick bite.

Neurologic Lyme disease presenting as abdominal pain in 71-year-old patient

“Although abdominal pain is generally not considered a sign of LD [Lyme disease], in this case report we describe a patient with unexplained severe abdominal pain that eventually turned out to be LD due to radiculopathy,” explains Stolk from the Haga Teaching Hospital in the Netherlands. [1]

Can we avoid using a pacemaker for Lyme carditis with high-degree AV block?

A pacemaker implantation is typically an effective treatment for patients with high-degree atrioventricular (AV) block due to Lyme carditis (LC). “However, the AV block in LC may revert back to normal conduction and usually resolves within the first 10 days of antibiotic administration,” says Yeung from Queen’s University in Kingston, Ontario. [1] “If the AV block in LC is indeed transient, then a permanent pacemaker is not indicated.”