Communicable diseases
The latest confirmed case of mad cow disease in Alberta, Canada, brings the total to four in less than two years, sparking concerns about the effectiveness of feed bans and trade agreements. This new case is particularly alarming as it involves a cow born after the 1997 ban on ruminant
Communicable diseases
Scientists from Germany have reported a breakthrough in the decontamination of surgical instruments from prion proteins, a crucial step in preventing the transmission of Creutzfeldt-Jakob disease (CJD) or its new variant (vCJD) from asymptomatic carriers. Researchers at the Robert Koch Institute used an in vitro carrier assay to assess the
Communicable diseases
Streptococcus pneumoniae is a leading cause of various infectious diseases worldwide, including otitis media, sinusitis, pneumonia, bacteremia, and meningitis. Current vaccines are often limited by the number of capsular polysaccharides that can be included, making pneumococcal proteins an attractive alternative for vaccine candidates. Researchers in Israel have identified glycolytic enzymes
Communicable diseases
The study highlights the importance of nasopharyngeal versus oropharyngeal sampling for isolating Streptococcus pneumoniae and Haemophilus influenzae from healthy and sick individuals, with the method of choice varying by age. The research, published in the Journal of Clinical Microbiology, found that nasopharyngeal (NP) sampling detected nearly 100% of Streptococcus pneumoniae
Communicable diseases
During Estonia's post-communist transition, a study found a significant correlation between syphilis incidence rates and changes in unemployment, tuberculosis incidence rates, and other social factors. Researchers analyzed data from different time periods and concluded that syphilis is a social disease, emphasizing the importance of social factors in the
Communicable diseases
Peridomestic mosquito adaptation appears to play a critical role in the emergence of dengue virus from its sylvatic progenitor strains. Researchers have found that endemic and epidemic dengue viruses, primarily transmitted by anthropophilic mosquitoes such as Aedes aegypti and Ae. albopictus, emerged when ancestral sylvatic dengue viruses transmitted among nonhuman
Communicable diseases
A severe respiratory syncytial virus (RSV) outbreak occurred in a large neonatal intensive care unit (NICU) in Portugal between November 1998 and March 1999. Retrospective analysis of the outbreak and the use of palivizumab, a humanized RSV monoclonal antibody, revealed that standard infection control measures were effective in the first
Communicable diseases
A recent study from Thailand reveals a striking correlation between the rise of bacterial infections and increased HIV seroprevalence in the northeastern region. Conducted between 1989 and 1998, the survey observed a notable increase in infections caused by certain pathogens, including Burkholderia pseudomallei, non-typhoid Salmonellae, and Cryptococcus neoformans, which were
Communicable diseases
Researchers from the United States have successfully demonstrated the effectiveness of porcine adenoviral vectors in gene delivery, addressing the limitations of human adenoviral vectors due to preexisting immunity. Porcine adenovirus serotype 3 (PAD)-based vectors were found to evade preexisting humoral immunity to adenoviruses and efficiently infect both human and
Communicable diseases
A recent study from the United States has shed light on the effectiveness of different immunosuppressive regimens in preventing hepatitis C recurrence after liver transplants. The research, conducted by P. Martin and colleagues from the Liver Transplantation Program at Cedars Sinai Medical Center, aimed to investigate whether the choice of
Communicable diseases
Researchers in the Netherlands have investigated a series of 17 patients diagnosed with Mycobacterium kansasii pneumonia over a 10-year period. The study aimed to analyze the clinical and epidemiological characteristics of these patients, as well as their immune systems. The investigation found that the patients had no recognized immune defect,
Communicable diseases
Levels of hepatitis C are reaching alarming rates among young injecting drug users in London, with 4 in 10 new young injectors now infected, while 3% are infected with HIV. This growing epidemic has significant public health implications, as hepatitis C can cause serious and sometimes fatal liver damage, mainly
