## Diagram: Source and Outputs of Ebola Vaccine Development ### Overview The image presents a diagram that outlines the source information regarding the development of the Ebola vaccine and its outputs, categorized as intrinsic and extrinsic. ### Components/Axes * **Header:** "Source" * **Main Section:** * A text box containing information about the Ebola vaccine development process. * Title: "Outputs" * Two categories: "Intrinsic" and "Extrinsic" * Two text boxes, one under each category, containing information related to the Ebola vaccine. ### Detailed Analysis * **Source Text Box:** * "The first vaccine for Ebola was approved by the FDA in 2019 in the US, five years after the initial outbreak in 2014. To produce the vaccine, scientists had to sequence the DNA of Ebola, then identify possible vaccines, and finally show successful clinical trials. Scientists say a vaccine for COVID-19 is unlikely to be ready this year, although clinical trials have already started." * **Intrinsic Text Box:** * "The first Ebola vaccine was approved in 2021." * **Extrinsic Text Box:** * "China has already started clinical trials of the COVID-19 vaccine." ### Key Observations * The "Source" text box provides background information on the Ebola vaccine development timeline and process. * The "Intrinsic" output refers to an outcome directly related to the Ebola vaccine itself. * The "Extrinsic" output refers to an outcome indirectly related to the Ebola vaccine, specifically the start of clinical trials for the COVID-19 vaccine in China. ### Interpretation The diagram illustrates the relationship between the initial research and development of the Ebola vaccine and its subsequent impact on other areas of vaccine research, specifically COVID-19. The "Source" information highlights the timeline and scientific processes involved in developing the Ebola vaccine. The "Outputs" section categorizes the direct (Intrinsic) and indirect (Extrinsic) results of this research. The fact that China has started clinical trials for the COVID-19 vaccine is presented as an extrinsic output, suggesting that the knowledge and experience gained from developing the Ebola vaccine may have contributed to the rapid progress in COVID-19 vaccine development. The diagram suggests a flow of knowledge and experience from Ebola vaccine development to COVID-19 vaccine research.