Final answer:
It is false that EBV infections are a sufficient condition for malignancy development, as additional factors such as immunosuppression play a critical role in the potential development of malignancies like Burkitt lymphoma.
Step-by-step explanation:
False: EBV infections are not by themselves a sufficient condition for malignancy development. While Epstein-Barr virus (EBV) has been associated with specific types of malignancies such as Burkitt lymphoma, the presence of EBV alone does not guarantee the development of a malignancy. Factors such as immunosuppression, as seen in patients with HIV or malaria, can influence the EBV to trigger malignancy. The virus favors a latent state under unfavorable conditions, suggesting there are additional factors at play in the development of malignancies. Moreover, the virus resides within B lymphocytes for extended periods without causing disease, and the majority of the population has had some exposure to EBV, as shown by serological tests.