The XMLHttpRequest object is a developers dream, because you can: 1  Update a web page without reloading the page. 2  Request data from a server-after the page has loaded. 3  Receive data from a server-after the page has loaded.
Adults should get a serogroup B meningococcal vaccine (BexseroÂ® or TrumenbaÂ®) if they: 1  Have a rare type of disorder (complement component deficiency) 2  Are taking a medicine called SolirisÂ®. 3  Have a damaged spleen or their spleen has been removed. 4  Are a microbiologist who is routinely exposed to Neisseria meningitidis.
Human papillomavirus (HPV). Live, attenuated vaccines currently recommended as part of the U.S. Childhood Immunization Schedule include those against measles, mumps, and rubella (via the combined MMR vaccine), varicella (chickenpox), and influenza (in the nasal spray version of the seasonal flu vaccine).ive, Attenuated Vaccines. Attenuated vaccines can be made in several different ways. Some of the most common methods involve passing the disease-causing virus through a series of cell cultures or animal embryos (typically chick embryos).