The Effect of Vaccination on the Competitive Advantage of Two Strains of an Infectious Disease.

We investigate the impact of differential vaccine effectiveness, waning immunity, and natural cross-immunity on the capacity for vaccine-induced strain replacement in two-strain models of infectious disease spread. We focus specifically on the case where the first strain is more transmissible but the second strain is more immune-resistant. We consider two cases on vaccine-induced immunity: (1) a monovalent model where the second strain has immune escape with respect to vaccination; and (2) a bivalent model where the vaccine remains equally effective against both strains.

Cerebellar-driven cortical dynamics can enable task acquisition, switching and consolidation.

The brain must maintain a stable world model while rapidly adapting to the environment, but the underlying mechanisms are not known. Here, we posit that cortico-cerebellar loops play a key role in this process. We introduce a computational model of cerebellar networks that learn to drive cortical networks with task-outcome predictions.

Duration of physical activity required to Ameliorate hyperglycemia without causing hypoglycemia in type 1 diabetes: A T1DEXI adults and pediatric cohort analyses.

Aims: To estimate physical activity (activity) duration required to lower glucose from above target range (>180 mg/dL) to within target range (TIR: 70-180 mg/dL) in individuals with type 1 diabetes (T1D).

Methods: Continuous glucose monitoring and activity data were collected from 404 adults (28-day observation) and 149 adolescents (10-day observation) with T1D. Activities (N = 1902) with a starting glucose between 181-300 mg/dL, duration 10-60 min, and no reported meals during activity were included in the analysis.

Postoperative Outcomes of Enucleation without Closure of the Conjunctiva.

Purpose: To evaluate the long-term outcomes of enucleation without conjunctival closure in a large patient cohort.

Methods: A retrospective chart review was conducted from January 2011 to January 2024, examining 144 eyes of 143 patients who underwent enucleation without conjunctival closure by a single oculoplastic surgeon. Data collected included patient demographics, indications for surgery, implant types, and complications.