LONDON — Two respiratory viruses in different parts of the world have captured the attention of global health officials — a novel coronavirus in the Middle East and a new bird flu spreading in China.
Last week, the coronavirus related to SARS spread to France, where one patient who probably caught the disease in Dubai infected his hospital roommate. Officials are now trying to track down everyone who went to Dubai with the first patient as well as all contacts of the second patient. Since it was first spotted last year, the new coronavirus has infected 34 people, killing 18 of them. Nearly all had some connection to the Middle East.
A new bird flu strain, H7N9, has been infecting people in China since at least March, causing 32 deaths out of 131 known cases.
WHO, which is closely monitoring the viruses, says both have the potential to cause a pandemic — a global epidemic — if they evolve into a form easily spread between people. Here’s a crash course in what we know so far about them:
Q: How are humans getting infected by the new coronavirus?
A: There is some suggestion the disease is jumping directly from animals like camels or goats to humans. The new coronavirus is most closely related to a bat virus, but it’s possible that bats are transmitting the disease via another source before humans catch it.
Q: Can the new coronavirus be spread from human to human?
A: In some circumstances, yes. There have been clusters of the disease in Saudi Arabia, Jordan, Britain and now France, where the virus has spread from person-to-person. Most of those infected were in very close contact, such as people taking care of a sick family member or health workers treating patients.
Q: How are people catching the bird flu H7N9?
A: Some studies suggest the new bird flu is jumping directly to people from poultry at live bird markets. Cases have slowed down since Chinese authorities began shutting down such markets. Unlike the last bird flu strain to cause global concern, H5N1, the new strain doesn’t appear to make birds sick and may be spreading silently in poultry populations.
Q: What precautions can people take against these new viruses?
A: WHO is not advising people to avoid traveling to the Middle East or China but is urging people to practice good personal hygiene like regular hand-washing.
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