There are 16 different types of hemagglutinin (H) proteins and nine different types of neuraminidase (N) proteins. This is how names such as H1N1 or H3N2 are acquired. However, the pandemic H1N1 influenza is different because it was created from a combination of human, swine and bird flu viruses.
Last name: Butte. This interesting surname of English origin with variant spellings But, Butt, Butte, Bute, etc., is derived from the middle English personal name But(t) of unknown origin, perhaps originally a nickname meaning short and stocky and akin to the late middle English butt meaning thick end or stump.
A butte is a flat-topped rock or hill formation with steep sides. canyon. A canyon is a deep valley with very steep sides-often carved from the Earth by a river. cape. A cape is a pointed piece of land that sticks out into a sea, ocean, lake, or river.cave. A cave is a large hole in the ground or in the side of a hill or mountain. canyon is a deep valley with very steep sides-often carved from the Earth by a river. cape. A cape is a pointed piece of land that sticks out into a sea, ocean, lake, or river. cave. A cave is a large hole in the ground or in the side of a hill or mountain.