Consider the following statements:
Which of the statements given above is/are correct?
Statement 3 is correct. Dengue fever is characterized by a range of symptoms, which can include a maculopapular skin rash. Bleeding manifestations, such as epistaxis (bleeding from the nose), bleeding from the gums, petechiae, and ecchymosis, are also recognized symptoms, particularly in more severe forms of the disease like dengue hemorrhagic fever.
Statement 1 is incorrect. Dengue is a viral disease, not a protozoan disease. It is caused by the dengue virus (DENV), which belongs to the family Flaviviridae. The virus is transmitted to humans primarily through the bites of infected female Aedes aegypti mosquitoes, and to a lesser extent, Aedes albopictus.
Statement 2 is incorrect. Retro-orbital pain, which is pain behind the eyes, is a classic and common symptom of dengue fever. Other characteristic symptoms include high fever, severe headache, muscle and joint pains (giving it the name "breakbone fever"), and nausea or vomiting.