Disease the time between infection and the appearance of symptoms. The latency period is the time between infection and the ability of the disease to spread to another person, which may precede, follow, or be simultaneous with the appearance of symptoms. Some viruses also exhibit a dormant phase, called viral latency, in which the virus hides in the body in an inactive state. For example, varicella zoster virus causes chickenpox in the acute phase; after recovery from chickenpox, the virus may remain dormant in nerve cells for many years, and later cause herpes zoster (shingles). Diseases may be classified by cause,
Brazilian disease Brazilian disease Brazilian disease is a phrase in economics to describe the situation in which the Brazilian real has strengthened (trading at around R$1.95 to the US dollar) on high prices for commodities such as soybeans, making Brazilian exports of manufactured goods uncompetitive in foreign markets. The term was coined to compare the economic situation facing Brazilian exports in the late 2000s to Dutch disease, an older term referring to similar conditions faced in the Netherlands in the 1960s and 1970s due to massive natural gas exports. The term "Brazilian disease" has not been widely used in economic literature or