Browsing by Author "Brissos, J"
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- Remember Kerion CelsiPublication . Brissos, J; Gouveia, C; Neves, C; Varandas, L
- Rickettsia Conorii Infection Rare Form of Conjunctival TransmissionPublication . Perry da Câmara, R; Brissos, J; Gouveia, C; Varandas, LMediterranean spotted fever (MSF) is a tick-borne rickettsial disease, endemic in Portugal. It is caused by Rickettsia conorii and clinically characterized by a vasculitic process with the classical clinical triad: fever, rash and lesion at the site of tick bite. It is accidentally transmitted to the human by its main vector, the Rhipicephalus sanguineus arthropod. Usually the disease develops after an infected tick bite but atypical forms of transmission such as mucosal contamination or inhalation have also been reported
- Rickettsial Infection Caused by Accidental Conjunctival InoculationPublication . Brissos, J; de Sousa, R; Santos, AS; Gouveia, CThe most common transmission route of tick-borne Rickettsia is through tick bite; nevertheless, other transmission routes should also be considered. We report a case of rickettsial infection in a 15-year-old boy caused by accidental contamination of the conjunctiva through the infected fluid of a crushed engorged tick removed from a dog. Right eye pain, conjunctival hyperaemia with mucopurulent exudate, chemosis and eyelid oedema were the first signs and symptoms. Two days later, the boy developed fever, myalgia, headache, abdominal pain and was vomiting; physical examination showed multiple cervical adenopathies but no rash. He was treated with doxycycline (200 mg/day) for 7 days with progressive resolution of clinical signs. Rickettsial infection was confirmed by immunofluorescence assay with serological seroconversion in two consecutive samples. Rickettsia conorii or Rickettsia massiliae were the possible causal agents since they are the Rickettsia spp found in the Rhipicephalus sanguineus dog tick in Portugal.