Untreated Rabies May Not Be Lethal for All, Study Says

HealthDay – 1 min 55 secs ago WEDNESDAY, Aug. 1 (HealthDay News) -- Bucking the notion that untreated rabies always proves lethal to humans, scientists studying the virus in isolated pockets of the world have found evidence that either natural resistance or an immune response may stave off certain death for some.

Traveling to the Peruvian Amazon, where outbreaks of rabies infections are spurred by highly common vampire bats, researchers from the U.S. Centers for Disease Control and Prevention learned that 10 percent of natives appeared to have survived exposure to the virus without any medical intervention. Another 11 percent were found to have antibodies in their blood that would neutralize rabies.

"This is a potential game-changer if the study is repeated successfully," said Dr. Rodney Willoughby Jr., a pediatric infectious disease specialist at Children's Hospital of Wisconsin and the author of an editorial accompanying the research. "It suggests either that rabies is not universally severe or fatal

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High Blood Pressure May Be Especially Lethal for Blacks

HealthDay – 4 mins 48 secs ago TUESDAY, April 10 (HealthDay News) -- Black people with high blood pressure are twice as likely to suffer sudden cardiac death than whites or other racial groups who suffer hypertension, according to a new study.

Researchers found this was true regardless of blacks' other risk factors, such as age, gender, family history, weight, diabetes or pre-existing heart disease.

Researchers examined 533 black and 8,660 non-black patients with high blood pressure and followed them for five years. Sudden cardiac death occurred in 178 patients, including 17 blacks and 161 non-blacks. After adjusting for risk factors such as age, sex, body mass index (a measure of body fat based on height and weight), diabetes and history of heart disease, the study revealed black patients had a two-fold greater risk of sudden cardiac death.

In sudden cardiac death, the heart unexpectedly stops beating, causing blood flow to the brain and organs to stop. If blood flow isn't restored through CPR or defibrillation, death occurs within minutes.

The study appears in the April issue of HeartRhythm.

"The truly unique outcome of our study is the indication that black patients may be at a higher risk of

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