Effectiveness of ceftazidime-avibactam versus ceftolozane-tazobactam for multidrug-resistant Pseudomonas aeruginosa infections in the USA (CACTUS): a multicentre, retrospective, observational study.

Background: Ceftolozane-tazobactam and ceftazidime-avibactam are preferred treatment options for multidrug-resistant Pseudomonas aeruginosa infections; however, real-world comparative effectiveness studies are scarce. Pharmacokinetic and pharmacodynamic differences between the agents might affect clinical response rates. We aimed to compare the effectiveness of ceftolozane-tazobactam and ceftazidime-avibactam for treatment of invasive multidrug-resistant P aeruginosa infections.

Geographical distribution of the Cryptococcus gattii species complex: a systematic review.

The taxonomy of the Cryptococcus gattii species complex continues to evolve, and has been divided into five pathogenic species. The objective of this systematic review was to summarise the geographical distribution of the C gattii species complex and the species within the C gattii species complex. We searched PubMed for articles related to human, animal, ecological, or laboratory-based studies of C gattii species complex isolates with traceable geographical origin published from January, 1970, until September, 2021.

Adequacy and Acceptability of the Self-Collected Anal Pap Smear in People Living With Human Immunodeficiency Virus in the Infectious Diseases Clinic.

Background Anal Pap smears are imperative to screening for human papillomavirus (HPV)-associated anal squamous cell cancers, particularly in patients living with human immunodeficiency virus (HIV) given a higher incidence of disease. Self-collection of specimens may be favored by patients and more feasible to collect, increasing screening. Methods This was a single-center observational cohort study at a single academic medical center Infectious Diseases clinic from October to December 2021.

Tularemia Proximal Interphalangeal Joint Septic Arthritis: A Case Report.

Case: A case of Francisella tularensis finger proximal interphalangeal joint septic arthritis secondary to feral cat bite is presented. The patient underwent operative debridement on presentation. On postoperative day 5, a gram-negative rod resembling F.

catheter-related bacteraemia in an immunocompromised patient.

A 34-year-old man on active chemotherapy was hospitalised with fever, chills and rigours after power-washing a pig pen on a farm. His blood cultures grew , a gram-negative rod in the family, which has been isolated from a variety of environments including soil, surface water, as well as in the gastrointestinal flora of farm animals. The likely source of infection was his tunnelled central venous catheter exposed to water contaminated by faeces when he was washing the pig pen.

Re-drawing the Maps for Endemic Mycoses.

Endemic mycoses such as histoplasmosis, coccidioidomycosis, blastomycosis, paracoccidioidomycosis, and talaromycosis are well-known causes of focal and systemic disease within specific geographic areas of known endemicity. However, over the past few decades, there have been increasingly frequent reports of infections due to endemic fungi in areas previously thought to be "non-endemic." There are numerous potential reasons for this shift such as increased use of immune suppressive medications, improved diagnostic tests, increased disease recognition, and global factors such as migration, increased travel, and climate change.

Implementation of a standardised sign-up process to increase MyChart enrolment among HIV-positive patients.

Interactive patient portals are a valuable tool for engaging patients in their healthcare, with various functionalities including viewing laboratory results, refilling prescriptions and communicating directly with nurses, physicians and other healthcare providers via electronic messaging. The utility of patient portals is limited primarily from lack of patient uptake and enrolment due to a variety of factors including lack of awareness, low health literacy, poor technology mastery, lack of availability of a smartphone or computer and distrust of the security of their personal health information. We aimed to increase enrolment in the Epic (O2) MyChart patient portal among patients receiving HIV care through our Infectious Diseases clinic via a standardised sign-up protocol during their clinic visits.

Calcium induces tobramycin resistance in Pseudomonas aeruginosa by regulating RND efflux pumps.

Pseudomonas aeruginosa is an opportunistic multidrug resistant pathogen causing severe chronic infections. Our previous studies showed that elevated calcium (Ca) enhances production of several virulence factors and plant infectivity of the pathogen. Here we show that Ca increases resistance of P.

A Pseudomonas aeruginosa EF-hand protein, EfhP (PA4107), modulates stress responses and virulence at high calcium concentration.

Pseudomonas aeruginosa is a facultative human pathogen, and a major cause of nosocomial infections and severe chronic infections in endocarditis and in cystic fibrosis (CF) patients. Calcium (Ca2+) accumulates in pulmonary fluids of CF patients, and plays a role in the hyperinflammatory response to bacterial infection. Earlier we showed that P.