T-helper cells (Th cells)

T-helper cells, or Th cells, are a type of white blood cell crucial for the immune system. They help coordinate the body's response to infections by sending signals that activate other immune cells, like B cells and cytotoxic T cells. This helps the body recognize and fight off pathogens, such as viruses and bacteria. Th cells play a vital role in building immunity and ensuring that the immune system works effectively. They are essential for both immediate responses and long-term protection against diseases.