Upper respiratory infections include the components of the upper airway and are most commonly caused by viruses.
The onset of symptoms occurs 2 to 3 days after exposure to the infectious agent. The illness usually lasts for 7 to 10 days. Nasal congestion, sneezing and sore throat are the hallmarks of the…
Crimean–Congo hemorrhagic fever (CCHF) is a widespread tick-borne viral disease that is endemic in Africa, the Balkans, the Middle East and Asia. The virus is a member of the Bunyaviridae family of RNA viruses. It is a zoonotic disease carried by several domestic and wild animals. While clinical disease is rare in…
Rift valley fever is an infectious disease caused by rift valley fever virus, an RNA virus that causes hemorrhagic fever in humans and animals, similar to Ebola, Lassa, Marburg, dengue and yellow fever viruses. Humans become infected via aerosols or by ingesting unpasteurized animal milk or after exposure to infected…
Brazilian hemorrhagic fever, caused by Sabiá virus, has been documented in three cases. It is characterized by a gradual and progressive illness consisting of constitutional symptoms, hemorrhage, neurologic manifestations, etc. Complications include shock, coma, and death.
Brazilian hemorrhagic fever is caused by the…
Ebola virus disease (EVD) or Ebola hemorrhagic fever (EHF) is a severe viral hemorrhagic disease caused by ebola viruses.
After an incubation period ranging from 3 to 12 days, patients present with sudden onset of the non specific symptoms of fever, malaise, arthralgia, myalgia, and chest pain followed by…
Marburg virus disease is characterized by a hemorrhagic fever. There have been past outbreaks of this illness as well as isolated cases that have resulted in high mortality. The clinical presentation typically consists of a progressive disease with fever, hemorrhagic manifestations, multiorgan failure, shock, and…
Kyasanur forest disease is a viral infectious disease endemic to India whose causative agent belongs to the tick-borne encephalitis serocomplex of flaviviruses.
Cases of KFD are only to be expected in endemic regions of southern India. Possibly, travelers who visited this area may have been exposed to infected…
Acute gastroenteritis refers to an inflammation of stomach and intestines mainly caused by infection with viral or bacterial agents. Sudden onset of symptoms like abdominal pain, vomiting and diarrhea is characteristic for this condition.
AG may run an asymptomatic, typical or severe course, depending on the overall…
Influenza is acommon infectious disease caused by the Influenza virus.
Onset is sudden with fever, rhinorrhea, sore throat and headache. Severe myalgias coupled with respiratory tract symptoms are typical of influenza. Patients may also have red, watery eyes and cough. There can also be tachycardia and dyspnea…