BLACKSBURG, Va. (AP) _ Virginia Tech has banned travel for university business to three West African countries because of the Ebola virus. President Timothy Sands announced the ban on travel to Guinea, Sierra Leone and Liberia late Monday in a letter posted on Tech’s emergency management website. The across-the-board ban includes travel for research, educational purposes and outreach. Sands also discouraged employees and students from taking personal trips to the countries. His letter says Virginia Tech hasn’t identified any member of the campus community or any visitors who are at risk for Ebola. He says the travel ban was issued to ensure that the risk remains low. Virginia Tech spokesman Larry Hincker tells The Virginian-Pilot that the university currently doesn’t have any programs or projects in the three countries.