Actihaemyl: An extract from calf blood containing inorganic salts, amino acids, polypeptides and purines, but no proteins nor antigenic substances or blood group characteristics. Its exact composition is unknown. It has been proposed as a radiation-protective agent.ColoradoPneumonia, Pneumococcal: A febrile disease caused by STREPTOCOCCUS PNEUMONIAE.Evolution, Planetary: Creation and development of bodies within solar systems, includes study of early planetary geology.Immunity, Innate: The capacity of a normal organism to remain unaffected by microorganisms and their toxins. It results from the presence of naturally occurring ANTI-INFECTIVE AGENTS, constitutional factors such as BODY TEMPERATURE and immediate acting immune cells such as NATURAL KILLER CELLS.Evans Blue: An azo dye used in blood volume and cardiac output measurement by the dye dilution method. It is very soluble, strongly bound to plasma albumin, and disappears very slowly.Pneumonia: Infection of the lung often accompanied by inflammation.Streptococcus pneumoniae: A gram-positive organism found in the upper respiratory tract, inflammatory exudates, and various body fluids of normal and/or diseased humans and, rarely, domestic animals.