A raging measles outbreak in West Texas, which has so far killed one child, has not abated and may have taken root in New Mexico, state health officials reported on Friday. The outbreak has sickened nearly 200 people — roughly 40 more cases than were reported on Tuesday — and has left 23 hospitalized in…
An unidentified illness has killed scores of people and infected hundreds in the Democratic Republic of Congo, the World Health Organization has reported, with preliminary investigations tracing the outbreak to three children who in January ate a bat and died. Fifty-three people in the country’s northwest had died from the disease, out of 431 reported…
Two dairy workers in Michigan may have transmitted bird flu to their pet cats last May, suggests a new study published on Thursday by the Centers for Disease Control and Prevention. In one household, infected cats may also have passed the virus to other people in the home, but limited evidence makes it difficult to…
The viruses we know best are the ones that make us sick — the influenza viruses that send us to bed and the smallpox viruses that may send us to the grave. But healthy people are rife with viruses that don’t make us ill. Scientists estimate that tens of trillions of viruses live inside of…
Dairy cows in Nevada have been infected with a new form of bird flu that is distinct from the version that has been spreading through herds over the last year, the U.S. Department of Agriculture announced on Wednesday. The finding indicates that the virus, known as H5N1, has spilled from birds into cows at least…
When bird flu first struck dairy cattle a year ago, it seemed possible that it might affect a few isolated herds and disappear as quickly as it had appeared. Instead, the virus has infected more than 900 herds and dozens of people, killing one, and the outbreak shows no signs of abating. A pandemic is…
Most American parents hardly give thought to polio beyond the instant their child is immunized against the disease. But there was a time in this country when polio paralyzed 20,000 people in a year, killing many of them. Vaccines turned the tide against the virus. Over the past decade, there has been only one case…
Reports of a surge in cases of a respiratory virus in China have evoked dark echoes of the start of the Covid-19 pandemic almost exactly five years ago. But despite the surface similarities, this situation is very different, and far less worrisome, medical experts say. The Chinese cases are reported to be infections with human…
A Louisiana patient who had been hospitalized with severe bird flu has died, the first such fatality in the United States, state health officials reported on Monday. The patient was older than 65 and had underlying medical conditions, the officials said. The individual became infected with the bird flu virus, H5N1, after exposure to a…
