Nursing homes reported 1,046 deaths in the week ended July 26, the most recent available data show. That marked a 14% increase from the prior week and a 24% increase from the first week of July, when the number of weekly nursing home deaths in the federal data hit a low point.

Five months after the virus first devastated a nursing home in Kirkland, Wash., the new findings, in a Wall Street Journal analysis of the federal data, show nursing homes’ defenses remain permeable when the virus takes hold in the communities that surround them. The Journal’s analysis excluded some nursing homes with aberrant data.

Before July, the U.S. had appeared to be making progress in limiting the coronavirus toll in nursing homes. The improvement came amid sharp declines in states with severe, early outbreaks, such as New York and New Jersey, where the number of overall cases has also fallen.