Once the flu virus enters a cell it can turn that cell into a viral factory making many more copies of the flu virus and causes illness.

Learn the common symptoms of the flu and how it can be diagnosed.

Learn some common excuses for not getting the flu vaccine, and some key information relevant to each one.

Compare the risks and benefits of the flu vaccine side-by-side and decide for yourself if flu vaccines are a good idea.

The resource "Disease and Disease Prevention" is a module in the "Health" course. The course is included in the Georgia Virtual Learning resource series available in the open educational resources collection of the NCLOR. This resource is included in the Health Medical Sciences discipline with the subject of Disease.

The flu virus has the unique ability to change in two different ways, causing genetic shift and drift. Learn exactly how these two mechanisms differ from one another

Daniel Clarke-Pearson, MD, and Lyn Filip, RN, BSN, OCN, will discuss the multidisciplinary management and care of women with gynecologic cancers (cervix, uterine and ovarian cancer). The lecture will incorporate anatomy, incidence, risk factors, early signs, spread of cancer and the first visit to a gynecologic oncologist for women with endometrial, ovarian and cervical cancers.

This NIH-sponsored web link provides an excellent overview of heart failure and its causes, symptoms, diagnosis and treatment.
It includes a comprehensive glossary of terms.
An illustration of a male person demonstrates the signs of heart failure such as edema and pulmonary congestion.

Every second of your life you are under attack. Bacteria, viruses, spores and more living stuff wants to enter your body and use its resources for itself. The immune system is a powerful army of cells that fights like a T-Rex on speed and sacrifices itself for your survival. Without it you would die in no time. This sounds simple but the reality is complex, beautiful and just awesome. An animation of the immune system. The video "The Immune System Explained I - Bacteria Infection" is a resource included in the Disease topic made available from the Kurzgesagt open educational resource series.

Find out how the cutoff for a "positive PPD" depends on clinical clues. Rishi is a pediatric infectious disease physician and works at Khan Academy.

An introductory course on radiation oncology and its role in conjunction with surgery and systemic therapy in multidisciplinary cancer care. A broad overview of a variety of indications for radiation, logistics of radiation treatment delivery, and side effects of treatment.

Everybody is talking about Measles - but what does the virus actually do in the body? Is it really so harmful that you need a vaccination? We go deep into the body of an infected person and see what Measles does and how the immune system reacts to it! The video "Measles Explained - Vaccinate or Not?" is a resource included in the Disease topic made available from the Kurzgesagt open educational resource series.

Unintended weight loss and anorexia in patients with cancer is associated with decreased performance status, reduced response and tolerance to treatment, decreased survival, and reduced quality of life. This lecture discusses the importance of proactive nutritional interventions vital to improving patient outcomes.

Hospice and palliative care are health care services created during the past 40 years to meet the needs of patients living with serious illness, including cancer, and their families. Delivered by teams of interdisciplinary health professionals, these services improve the quality of life and care of patients. This lecture will discuss the development of palliative care and hospice, the components of these services and their outcomes for patients and families and the careers available to health care professionals dedicated to serving patients with cancers of all ages.

There are a number of ways that we can help to prevent TB from spreading, learn some of the most common ones. Rishi is a pediatric infectious disease physician and works at Khan Academy.

Learn some key features of primary TB and how it differs from secondary TB. Rishi is a pediatric infectious disease physician and works at Khan Academy.These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video.

Learn the effects that TB has on the lungs and some important clinical clues.

This is a link to a published study (pdf) on the effects of type 2 diabetes on various types of brain aging in elderly men. The Honolulu-Asia Aging Study was funded by the NIH. CITATION: Kork, E.S.C., White, L.R., Scheltens, P., & Launer, L.J. (2006). Brain aging in very old men with type 2 diabetes. Diabetes Care, 29, p. 2268-2274.

This lecture provides an overview of the role of nutrition in cancer prevention, treatment, and survivorship.

Lecture Objectives
-Describe the link between diet and cancer development.
-Understand the role of a Registered Dietitian for management of treatment-related side effects.
-Identify specific diet recommendations for cancer survivorship.

Two deadly diseases, HIV and TB, can often co-exist in the same patient.