Varicella zoster virus and safe in adults with Human Immunodeficiency Virus. Chickenpox-like rashes were recognised and described by ancient civilizations; the relationship between zoster and chickenpox was not realized until 1888. It was in 1943 that Ruska noticed the similarity between virus particles isolated from the lesions of zoster and those from chickenpox. In 1974 the first vaccine was introduced for chickenpox. Varicella zoster virus Varicella zoster virus or varicella-zoster virus (VZV) is one of eight herpesviruses known to infect humans. It causes chickenpox (varicella), a disease most commonly affecting children, teens, and young adults, and shingles (herpes zoster) in adults; shingles is
Reactive airway disease Reactive airway disease Reactive airway disease is a general term used by many physicians to label patients with symptoms similar to those of asthma. It is most commonly used when a physician is hesitant about formally diagnosing a patient with asthma, which is most prevalent in the pediatric setting for a variety of reasons. While some physicians may use RAD and asthma synonymously, this causes controversy, since RAD can not be used as a real diagnosis for physicians. An exact definition of the condition does not exist. Individuals that are typically labeled as having reactive airway disease, or RAD, generally