Final answer:
There is no cross immunity between HSV-1 and HSV-2; they are distinct viruses each with specific characteristics and modes of transmission.
Step-by-step explanation:
The statement 'There is cross immunity between HSV-1 and HSV-2' is false. Although both herpes simplex virus type 1 (HSV-1) and herpes simplex virus type 2 (HSV-2) belong to the same family of viruses and share some similarities, they are different viruses and have distinct characteristics and modes of infection. HSV-1 is generally associated with oral lesions like cold sores or fever blisters, and is highly contagious, while HSV-2 is usually associated with genital herpes and is most commonly transmitted sexually. Due to the differences in these viruses, immunity to one type does not necessarily confer immunity to the other.