Demodex – An Old Pathogen or a New One?

Demodex - an old pathogen or a new one?

Demodex was first identified over 150 years ago, but only recently has it attracted wider interest as a contributor to chronic diseases such as acne rosacea or marginal blepharitis. Demodex is commonly found in the human population, in skin sebaceous glands or follicles. The frequency of Demodex infection increases with age, as it is mainly diagnosed after the age of seventy; however, it can so...

Scalp folliculitis with Demodex: innocent observer or pathogen?

Caesarean section scar ectopic pregnancy: a new problem or new name for an old one?

Until recently, only a few of us had heard of a Caesarean section scar ectopic pregnancy. However, with new case reports being published in medical journals almost every day, it feels as if we are witnessing a global epidemic of a previously unknown form of ectopic pregnancy. Is this a true challenge for all of us or are we being offered a new fancy medical diagnosis of questionable clinical si...

Biofilms of Mycobacterium tuberculosis: New Perspectives of an Old Pathogen

Based on a randomized clinical trial conducted by British Medical Council between 1972 and 1974, the World Health Organization (WHO) and other government agencies implemented a short-course multi-drug regimen for tuberculosis – a disease caused by the infection of Mycobacterium tuberculosis (BMC, 1972, Fox et al., 1999). The regimen is made of three antibiotics, isoniazid, rifampicin and pyrazi...

[Staphylococcus aureus infections: new challenges from an old pathogen].

Staphylococcus aureus is a versatile organism with several virulent characteristics and resistance mechanisms at its disposal. It is also a significant cause of a wide range of infectious diseases in humans. S. aureus often causes life-threatening deep seated infections like bacteremia, endocarditis and pneumonia. While traditionally confined mostly to the hospital setting, methicillin-resistan...