Correct option is A
Sol. Dengue is a mosquito-borne viral infection caused by the dengue virus (DENV) and transmitted primarily by the Aedes aegypti mosquito. It is common in tropical and subtropical regions and causes flu-like symptoms, and in severe cases, can lead to dengue hemorrhagic fever. There is no specific antiviral treatment, and prevention focuses on vector control. Dengue cases typically surge during monsoon seasons. Therefore, statement (a) is medically and epidemiologically accurate.
Explanation of each option:
· (a) Dengue is a mosquito–borne viral infection – Correct. Dengue is caused by a virus and spread by Aedes mosquitoes. It affects millions globally every year and is managed through hydration and mosquito control strategies.
· (b) Malaria is a non–infectious disease – Incorrect. Malaria is a highly infectious disease, caused by Plasmodium parasites and transmitted via Anopheles mosquitoes. It is entirely preventable and curable with proper diagnosis and treatment.
· (c) H1N1 is not directly associated with Swine Flu – Incorrect. H1N1 is the exact strain of influenza virus responsible for the 2009 Swine Flu pandemic. It is a zoonotic virus that spread from pigs to humans, making this statement false.
· (d) Typhoid doesn’t spread through contaminated food and drinking water – Incorrect. Typhoid is caused by Salmonella typhi bacteria and is primarily spread through consumption of contaminated food or water, especially in areas with poor sanitation.