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Tuberculosis or TB is a common and often deadly infectious disease caused by mycibacteria, usually mycobacterium tuberculosis in humans. Tuberculosis usually attacks the lungs but can also affect other parts of the body. It is spread through the air, when people who have the disease cough, sneeze, or spit. Most infections in humans result in an asymptomatic latent infection, and about one in ten latent infections eventually progresses to active disease, which, if left untreated, kills more than 50% of its victims.
The common cold (viral upper respiratory tract infection (VURI), acute viral rhinopharyngitis, acute coryza, or cold) is a contagious, viral infectious disease of the upper respiratory system, caused primarily by rhinoviruses and coronaviruses Common symptoms include a sore throat, runny nose, and fever. There is no cure, however symptoms usually resolves spontaneously in 7 to 10 days, with some symptoms possibly lasting for up to three weeks.
Infectious disease caused by a bacterium:Lyme disease
Lyme disease is an infectious joints disease, neurological and heart, whose agent is a bacterium of the family spirochaetes, Borrelia burgdoferi. Burgdoferi Borrelia is transmitted to humans, by the bite of ticks . Several mammals, among them deer, are reservoirs of the bacteria. Lyme's disease meets in Europe, America and Australia.
Treatment consists of antibiotics, which treat the first clinical manifestations and prevent late neurological manifestations.
Sequelae of Lyme disease have, especially, neurological and skin nature.
Infectious disease caused by a virus: Chickenpox
Chickenpox is an acute infectious and contagious disease, caused by the varicella-zoster virus and manifested by polymorphic, pruritic rash, which cames in waves. Varicella-zoster virus determine varicella, as the primary infection and herpes zoster as recurrent infection. Source of infection is one person sick of varicella or herpes zoster, infectious by lesions, which are mainly in the skin and mucous membranes. The gateway of infection is the nose and throat mucous and conjunctival.
Incubation varies between 10-21 days,the average being of 14-15 days and the quarantine lasts 3 weeks. Severe forms occur only in children and adults with low resistance. In children, symptoms preceding the rash may be minor (mild fever, headache, myalgia) that lasts 7-10 days.At every 1-2 days,new eruptive elements appear.
Home treatment involves bed rest and hygiene of skin and mucous membranes (vesicles do not break because they can infect). Skin with rash is powdered with mint talc and mint alcohol. General bath is allowed only after the fall of scabs.
Severe or complicated cases require hospitalization.
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