CDCMedical Information. The Centers for Disease Control is an American organization dedicated to researching and solving Diseases and health issues throughout the US and World. A great site for up to date information on global pandemics, diseases, and medical research.
Mayo Clinic: Patients and health professionals. Contains articles and research on various diseases and illnesses for patients to get in-depth knowledge. The Mayo Clinic is one of the leading Hospital and Research institute in America.
MedlinePlus: Patients and health professionals. Covers all areas of medicine, including dentistry and nursing. Learn about the latest treatments, look up information on a drug or supplement, find the meanings of words, view medical videos or illustrations, get links to the latest medical research on your topic or find out about clinical trials on a disease or condition.  National Institute of Health’s website for patients and their families and friends produced by the National Library of Medicine.
WebMD: Patients and health professionals. WebMD covers everything from finding a local doctor to helping people look up symptoms. The site is best summed up by the WebMD editor “The WebMD content staff blends award-winning expertise in medicine, journalism, health communication and content creation to bring you the best health information possible. Our esteemed colleagues at MedicineNet.com are frequent contributors to WebMD and comprise our Medical Editorial Board.”
World Health OrganizationMedical Information. The World Health Organization was formed in 1948, their mission is advocating for healthcare, monitoring public health risks and contagions, helping coordinate responses to health emergencies, and promoting human health and well being.  Their website follows pandemics and gives medical insight to ongoing issues around the world.