Captain America's Shield. Dr. The shield has great aerodynamic properties: it is able to slice through the air with minimal wind resistance and deflection of path. Its great overall resilience, combined with its natural concentric stiffness, enables it to rebound from objects with minimal loss of angular momentum.
Pneumonia is an infection of the lungs. People with pneumonia often complain about coughing, fever, shaking chills, and shortness of breath. 1  Your body's immune system usually keeps bacteria from infecting your lungs.2  In pneumonia, bacteria reproduce in your lungs, while your body tries to fight off the infection.f you inhale toxic materials, you can injure your lungs and cause chemical pneumonia. Fungus also can cause pneumonia. In certain areas of the United States, specific fungi are well known. Coccidioidomycosis causes a pneumonia called San Joaquin fever or  Valley fever  in the desert regions of California.
1 The most common cause of bacterial pneumonia is Streptococcus pneumoniae.Haemophilus influenzae, Chlamydia trachomatis, Mycoplasma pneumoniae, and Legionella pneumophila are some other major bacteria that cause pneumonia.acterial Pneumonia Causes. 1  Most pneumonia is caused by bacteria or a virus. 2  Pneumonia from any cause can occur at any age, but people in certain age groups are at higher risk for certain types of pneumonia.