She knows he is at high risk of contracting Ebola.
Drug users are at high risk of contracting tuberculosis and HIV.
However, this puts both partners at high risk of contracting a plethora of STIs.
On the streets, the children are at high risk of contracting HIV, being abused or becoming addicted to drugs.
Finally in Phase 3, thousands of volunteers who are H.I.V. negative and at high risk of contracting the virus test the safety and effectiveness of the vaccine.
Dr. Takaro said 84 more have been "sensitized," to beryllium, which means they are at high risk of contracting the full-blown disease.
The rise of infections among younger gay men, especially black and Hispanic men, is troubling, and the study carries the clear implication that people at high risk of contracting the disease are becoming less cautious.
Phase 2 then involves hundreds of volunteers who are H.I.V. negative and are at both low and high risk of contracting the virus to test the safety and immune responses of the vaccine.
The $20,250 shipment, marked "urgent," was delivered to Concerned Citizens for Humanity, a nonprofit agency in Hartford that distributes condoms and other services to people at high risk of contracting H.I.V. and AIDS.
Women at high risk of contracting the virus that causes AIDS should not use the widely sold spermicide, nonoxynol-9, because it may increase the risk of H.I.V. rather than protect against it, the United Nations warned today.
Before the conflict, many areas of Syria were regularly sprayed with mosquito repellent as a public health measure, but now there is a high risk of contracting mosquito and insect-borne diseases.
