A Case of Posterior Cortical Atrophy in Alzheimer's Disease.

This is a case of a 67-year-old male diagnosed with posterior cortical atrophy. Posterior cortical atrophy is an underdiagnosed phenomenon seen in neurodegenerative diseases, such as Alzheimer's disease. When this condition manifests in patients with Alzheimer's disease, it is known as a visual variant of Alzheimer's disease.

PdpC, a secreted effector protein of the type six secretion system, is required for erythrocyte invasion by LVS.

is a gram negative, intracellular pathogen that is the causative agent of the potentially fatal disease, tularemia. During infection, is engulfed by and replicates within host macrophages. Additionally, this bacterium has also been shown to invade human erythrocytes and, in both cases, the Type Six Secretion System (T6SS) is required for these host-pathogen interaction.