How many elders were abandoned in nursing homes?

There isn't sufficient context from the provided statement or additional information to determine precisely how many elders have been abandoned in nursing homes. Abandonment situations involve individual cases and can vary among different regions and countries. If you're concerned about this topic and require specific data or facts, it's advisable to refer to reputable reports, studies, or statistics conducted by relevant research organizations, government agencies, or non-profit groups specialized in the elderly care sector.