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Smallpox was an infectious disease caused by variola virus (often called smallpox virus), which belongs to the genus Orthopoxvirus. [7] [11] The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) certified the global eradication of the disease in 1980, [10] making smallpox the only human disease to have been eradicated to date.
Tick paralysis is believed to be due to toxins found in the tick's saliva that enter the bloodstream while the tick is feeding. The two ticks most commonly associated with North American tick paralysis are the Rocky Mountain wood tick (Dermacentor andersoni) and the American dog tick (Dermacentor variabilis); however, 43 tick species have been implicated in human disease around the world. [1]
It is the only human disease to be eradicated worldwide. Video recording of a set of presentations given in 2010 about humanity's efforts towards malaria eradication. The eradication of infectious diseases is the reduction of the prevalence of an infectious disease in the global host population to zero. [1]
According to the CDC, [27] "Doctors often avoid prescribing doxycycline to young children because of a warning that tooth staining may occur when used in children less than 8 years old. ..Misperceptions about the use of doxycycline for children prevent kids from getting lifesaving treatment" of rickettsial diseases.
The term childhood disease refers to disease that is contracted or becomes symptomatic before the age of 18 or 21 years old. Many of these diseases can also be contracted by adults. Some childhood diseases include:
Rotaviruses infect the young of many species of animals and they are a major cause of diarrhoea in wild and reared animals worldwide. [8] As a pathogen of livestock, notably in young calves and piglets, rotaviruses cause economic loss to farmers because of costs of treatment associated with high morbidity and mortality rates. [ 147 ]
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Generally, treatment options are limited. [4] Injecting the lesion with cidofovir or applying imiquimod has been tried. [4] It is sometimes necessary to cut them out. [4] The vaccine used in sheep to prevent orf is live and has been known to cause disease in humans. [4] The disease is endemic in livestock herds worldwide. [2]