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Infectious Diseases

Lyme – a challenging disease to diagnose

Lyme disease is an infectious disease caused by Borrelia bacteria transmitted by tick bites from ticks of the Ixodes genus. Particularly if untreated, serious and long-term symptoms can occur such as neurological problems, facial palsy, lower limb impairment, heart complications, arthritis, encephalomyelitis and psychosis. It is estimated to affect 300,000 people per year in North America and 65,000 in Europe. Transmission can occur across the placenta during pregnancy. The causative...

James Steggles
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Toxoplasma IgM – not a smoking gun for acute infection

Toxoplasma gondii is a protozoan parasite present in a third of the world’s human population. People acquire this infection in three ways: i) inadequately cooked infected meat, particularly pork, ii) unwitting ingestion of oocysts passed in cat feces, which could, for example, occur whilst gardening, and iii) pregnant women passing the infection transplacentally to their unborn fetus – known as Congenital Toxoplasmosis. In most cases the infection is asymptomatic or...

James Steggles
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Chagas positive plasma added to range

Logical Biological has added Chagas antibody positive plasma to its range having received clearance from the UK government Health & Safety Executive to handle human biological material containing Trypanosoma cruzi, which is the causative agent of Chagas Disease. T. cruzi is a Hazard Group 3 pathogen according to “The Approved List of Biological Reagents”. Hazard Group 3 is defined as follows: “Can cause severe human disease and may be a serious hazard to employees; it may...

James Steggles
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HIV – a challenging disease to diagnose

Human Immunodeficiency Virus (HIV) has a reputation for being difficult to treat, although advances in medicine have reached a level where those being treated can be expected to live almost to their full life span. However, as we shall see in this article, current HIV testing is not perfect and many challenges remain. There are multiple HIV viruses HIV is actually a small family of distinct viruses comprised of HIV1 and HIV2....

James Steggles
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