11.   Four had hemorrhagic fever, and one of those died.

12.   He directed research into an outbreak of dengue hemorrhagic fever in Mexico in August that spilled over the border into the United States.

13.   He battled hemorrhagic fevers in Bolivia.

14.   He is fighting Crimean-Congo hemorrhagic fever, caused by a tick-borne virus.

15.   He said there was concern about simultaneous epidemics of plague and a mosquito-borne viral infection known as dengue hemorrhagic fever.

16.   Hemorrhagic fever viruses like Sin Nombre are among the most dangerous biological agents known.

17.   It was a hemorrhagic fever, Ebola-like in many symptoms.

18.   Its most serious form is dengue hemorrhagic fever, which can cause internal bleeding, vomiting, severe abdominal pain and death.

19.   Methods for diagnosing botulism, viral hemorrhagic fever, pneumonic plague and smallpox are similarly described.

20.   One known as Korean hemorrhagic fever has killed several American soldiers in South Korea in recent years, usually those involved in field training.