Jonna Lorenz

Purified nisin is effective at killing Clostridioides difficile, a recent ex vivo study demonstrated, opening up the potential to use the bacteriocin as a treatment.

Global use of HIV pre-exposure prophylaxis has risen as more countries have adopted World Health Organization recommendations.

The adoption of numerous HIV prevention measures was associated with an 80% drop in the number of HIV diagnoses, a study evaluating the success of 56 Dean Street in London found.

Positive results of a phase 3 trial of Regeneron’s monoclonal antibodies treatment REGEN-COV among people at high risk for COVID-19 because of household exposure support the drug’s use for post-exposure prophylaxis.

Attendance of professional and college football games may resume with COVID-19 mitigation measures, according to a study that found no association between games with limited attendance and COVID-19 cases.

Three HIV screening strategies identified comparable numbers of new HIV diagnoses, a new study found.

A clinical decision support (CDS) strategy including a default influenza vaccine order for eligible patients, a nursing script using a presumptive strategy, and education for clinicians, was associated with significant improvement in vaccination rates among hospitalized children, a new study showed.

A recent study of sexually active young women in Africa found that initiation of HIV preexposure prophylaxis (PrEP) was high at 95% and one-fifth showed high adherence at 6 months.

Use of remdesivir for COVID-19 was associated with longer hospital stays but was not associated with improved mortality, a recent study of 2344 patients at 123 VA hospitals found.

An emergency department in Canada saw a steep drop in emergency department visits and a spike in the proportion of serious bacterial infections among newborns and young infants during the first year of the pandemic, a new study found.

US residents with HIV have higher rates of mortality than their peers without infection, but the gap is narrowing, a recent study showed.

Life expectancy for Black and Hispanic Americans dropped 2 to 3 times more than that of White Americans during the pandemic, a research letter in JAMA Network Open said.

Kansas counties that adopted mask mandates saw a 60% drop in COVID-19 cases, a new study found.

The COVID-19 pandemic had a substantial effect on women in Kenya who are reliant on transactional sex for income, leading to high levels of food insecurity and psychological burden.

COVID-19-associated hospitalization of adolescents is more than 12 times less likely than that of adults, but exceeds that associated with influenza by 2.5 to 3 times, the US Centers for Disease Control and Prevention (CDC) reported.

Children infected with SARS-CoV-2 who are Black, Hispanic or Asian have a greater risk of developing the rare multisystem inflammatory syndrome, a new study found.

International travelers acquire antimicrobial resistance genes, including some not included in databases, a recent study confirmed.

Contact tracing can be an effective tool for identifying new cases of COVID-19, but a new study found that close contacts were reported for only about a third of laboratory confirmed cases.

Risk of SARS-CoV-2 infections varies among Latinx residents, with Mayan individuals experiencing the greatest risk, according to a recent study of the evaluated infections in the Fruitvale neighborhood of Oakland, Calif.

COVID-19 infections were 13.6 percentage points higher in nursing homes with 50% or more Black residents, and deaths were 3.5 percentage points higher, compared with nursing homes with no Black residents, a new study found.

Merck moved closer to offering its pneumococcal conjugate vaccine for use in pediatric populations with the recent announcement of positive topline results in 2 phase 3 pediatric clinical trials.

Patients with moderate to severe pneumonia associated with COVID-19 and high C-reative protein levels may benefit from treatment with the monoclonal antibody tocilizumab, a follow-up study found.

Early treatment with lenzilumab improved the likelihood of survival without ventilation by 54% among patients hospitalized with COVID-19 who were hypoxic but not on invasive mechanical ventilation, a new study found.

Routine screening of employees at St. Jude Children’s Research Hospital show lower rates of asymptomatic SARS-CoV-2 infection among vaccinated workers.

A new study in Canada suggests clinical practice guidelines should consider recommending days of amoxicillin for treatment of outpatient pediatric pneumonia in previously healthy children not requiring hospitalization.

Maternal social vulnerability and preterm birth were associated with higher risk of adverse health outcomes among infants born to mothers with SARS-CoV-2 infection, a new study found.

Antibody levels induced by mRNA COVID-19 vaccines are much higher than those induced by natural infection and confer cross-reactivity that could be effective against new variants, a new study from the University of California, Irvine, found.

Cancer patients are more than twice as likely to acquire hospital-associated Staphylococcus aureus bacteraemia (HA-SAB) and Clostridioides difficile infection (HA-CDI) than others, a new study from Australia found.

A pair of recent studies suggest that the ability of people with blood cancers lymphocytic leukemia and multiple myeloma to produce antibodies in response to COVID-19 vaccines is impaired.

Even in mild cases, symptoms of COVID-19 can linger for at least 8 months, according to new research.