Consider the following statements: 1. Dengue is a protozoan disease transmitted by mosquitoes. 2. Retro-orbital pain is not a symptom of Dengue. 3. Skin rash and bleeding from nose and gums are some of the symptoms of Dengue. Which of the statements is/are correct?

1. Statement 1 is incorrect. Dengue is a viral disease caused by the Dengue virus, which is transmitted by mosquitoes (primarily Aedes aegypti). It is not a protozoan disease. 2. Statement 2 is incorrect. Retro-orbital pain (pain behind the eyes) is a characteristic symptom of Dengue fever. 3. Statement 3 is correct. Common symptoms of Dengue include high fever, headache, body aches, skin rash, and in severe cases (Dengue Hemorrhagic Fever or Dengue Shock Syndrome), bleeding from nose and gums can occur. 4. Therefore, only statement 3 is correct.