vibrio cholerae is a human pathogen that causes mild to severe diarrheal illnesses and has major public health significance. the aim of this study was to investigate the effects of antimicrobial activity of the gold nanoparticles on vibrio cholera. gold and silver nanoparticles are chemically synthesized. standard strain of vibrio cholerawas cultured in a nutrient broth. minimum inhibitory conc...

To the Editor: Ehrlichia ruminantium, transmitted by ticks of the genus Amblyomma, causes heartwater in ruminants in subSaharan Africa, Madagascar and some Caribbean islands, but there are no authenticated reports that the organism can cause disease in non-ruminants or humans. No reliable vaccine is available and infected animals frequently die before treatment with tetracyclines can be initiat...

Infections with human herpesvirus 6 (HHV-6), a beta-herpesvirus of which two variant groups (A and B) are recognized, is very common, approaching 100% in seroprevalence. Primary infection with HHV-6B causes roseola infantum or exanthem subitum, a common childhood disease that resolves spontaneously. After primary infection, the virus replicates in the salivary glands and is shed in saliva, the ...

Streptococcus pluranimalium as a novel human pathogen has been reported by several authors in various contexts. In all reported cases in humans the microorganism was detected by the Vitek2®. The great advances with the introduction of new analytical techniques such as MALDI-TOF or 16S rRNA analysis enabled a more detailed discrimination of pathogens such as these nonhemolytic streptococci. In t...

Vibrio fluvialis is a pathogen commonly found in coastal environs. Considering recent increase in numbers of diarrheal outbreaks and sporadic extraintestinal cases, V. fluvialis has been considered as an emerging pathogen. Though this pathogen can be easily isolated by existing culture methods, its identification is still a challenging problem due to close phenotypic resemblance either with Vib...

Tuberculosis (TB) is a disease of antiquity. Yet TB today still causes more adult deaths than any other single infectious disease. Recent studies show that contrary to the common view postulating an animal origin for TB, Mycobacterium tuberculosis complex (MTBC), the causative agent of TB, emerged as a human pathogen in Africa and colonized the world accompanying the Out-of-Africa migrations of...

Aeromonas dhakensis was first isolated from children with diarrhea in Dhaka, Bangladesh and described in 2002. In the past decade, increasing evidence indicate this species is widely distributed in the environment and can cause a variety of infections both in human and animals, especially in coastal areas. A. dhakensis is often misidentified as A. hydrophila, A. veronii, or A. caviae by commerc...

Infectious diseases and epidemics have always accompanied and characterized human history, representing one of the main causes of death. Even today, despite progress in sanitation and medical research, infections are estimated to account for about 15% of deaths. The hypothesis whereby infectious diseases have been acting as a powerful selective pressure was formulated long ago, but it was not u...

Publications describing aspects of the coccidian protozoan parasite Cryptosporidium, increased greatly during 1983 and 1984 as a result of not only increasing veterinary interest but also in the role of the parasite in the newly recognised acquired immune deficiency syndrome (AIDS). The reports reflected widespread collaboration, not only between clinicians, microbiologists, and histopathologis...