Endemic typhus (murine typhus): caused by Rickettsia Typi, this is transmitted by the bite of the mouse flea (Xenopsylla cheopis), causing headaches, chills, fever, pain in the body and joints, in addition to red spots for approximately fifteen days. There are records of this disease only in the states of the Southeast region.
Typhusepidemic (exanthematic typhus): provoked by Rickettsia prowazekii, has body louse as the transmitting agent (pediculus humanus corporis). Bacteria released together with the feces of these arthropods enter the body through scratching injuries. Thus, they cause a high and persistent fever, in addition to reddish spots on the body. Brill-Zinsser disease, characterized by the involvement of the immune system, is a complication that can appear years later, with conditions to cause the patient's death.
Trachoma: inflammation of the conjunctiva and cornea caused by Chlamydia trachomatis; being one of the main causes of blindness in individuals in developing countries. Chronic in nature, it causes tearing, photophobia, vision obstruction and the appearance of follicles in the upper eyelid. The healing of this inflammatory process alters the conformation of the cilia, allowing them to scratch the cornea, leading to long-term loss of vision. Its transmission occurs through eye-to-eye contact or contaminated hands; or indirectly, through clothing or mosquitoes that had previous contact with the eyes of affected individuals.
Tuberculosis: caused by Mycobacterium tuberculosis, also known as Koch's bacillus, compromises lungs causing cough, fever, fatigue and, in more advanced cases, bloody sputum. Responsible for the death (and many productions) of Brazilian writers, such as Álvares de Azevedo, Castro Alves, Casimiro de Abreu and Manuel Bandeira, can be preventin through vaccination and treatment of patients, since its transmission occurs through the inhalation of respiratory droplets eliminated by these.
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THE MINISTRY OF HEALTH WARNS:
Self-medication can have unwanted and unanticipated effects, as the wrong medicine not only does not cure, it can worsen your health.
By Mariana Araguaia
Graduated in Biology
Brazil School Team
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Tuberculosis
Kingdom Monera - Realms of the Living World -Biology -Brazil School
Would you like to reference this text in a school or academic work? Look:
ARAGUAIA, Mariana. "Endemic typhus, epidemic typhus, trachoma and tuberculosis"; Brazil School. Available in: https://brasilescola.uol.com.br/biologia/tifo-endemico-tifo-epidemico-tracoma-tuberculose.htm. Accessed on June 27, 2021.