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Thanks, Howard

Virologist Howard Bachrach, who was the first person to purify the polio and foot-and-mouth disease viruses died at the end of June, reports the Los Angeles Times. Bachrach's work on polio in the 1950s made it possible for Jonas Salk to develop a vaccine against the disease. While working at Plum Island, Bachrach discovered that capsid proteins on the surface of the foot-and-mouth disease virus could produce an immune response in both people and animals. Bachrach received the National Medal of Science in 1983. He was 88.

The Scan

Pig Organ Transplants Considered

The Wall Street Journal reports that the US Food and Drug Administration may soon allow clinical trials that involve transplanting pig organs into humans.

'Poo-Bank' Proposal

Harvard Medical School researchers suggest people should bank stool samples when they are young to transplant when they later develop age-related diseases.

Spurred to Develop Again

New Scientist reports that researchers may have uncovered why about 60 percent of in vitro fertilization embryos stop developing.

Science Papers Examine Breast Milk Cell Populations, Cerebral Cortex Cellular Diversity, Micronesia Population History

In Science this week: unique cell populations found within breast milk, 100 transcriptionally distinct cell populations uncovered in the cerebral cortex, and more.