May 18 is HIV Vaccine Awareness Day

This is a day to recognize and thank the thousands of volunteers, community members, health professionals, and scientists who are working together to find a safe and effective HIV vaccine. It is also a day to educate our communities about the importance of preventive HIV vaccine research.

In recognition of HIV Vaccine Awareness Day, community activities and media events are being held around the country.

LifeScience Moment: Secretariat won the Preakness Stakes in record setting time

On May 19, 1973 Secretariat won the Preakness Stakes in a record setting time of 1:53, a stakes record that still stands today.

Secretariat, the record setting winner of the Triple Crown in 1973, had a heart estimated to be 22 pounds or two-and-three-quarters times as large as that of the average horse which is approximately 8.5 pounds. Secretariat's Belmont Stakes victory by 31 lengths and a time of 2:24 flat, broke the stakes' record by more than two seconds, another record that still stands.

Secretariat's large heart can be genetically traced to the legendary Eclipse, foaled in England for the Duke of Cumberland in 1764. The larger heart is passed down the female line on the X chromosome.

Today, this genetic knowledge combined with ultrasound imaging technology helps breeders take advantage of the X Factor.

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Science Quote

"One thing I have learned in a long life: that all our science, measured against reality, is primitive and childlike and yet it is the most precious thing we have."