White blood cells are produced in the bone marrow. They are released into the bloodstream and travel wherever they are needed. Low levels of neutrophils occur when the bone marrow cannot replace them as fast as needed. In babies, the most common cause is infection. A very severe infection may cause neutrophils to be used up quickly. It may also prevent the bone marrow from producing more neutrophils. Sometimes, an infant who is not sick will have a low neutrophil count for no obvious reason.
The Mikoyan MiG-29 (Russian: Ð¼Ð¸ÐºÐ¾ÑÐ½ Ð¼Ð¸Ð³-29; NATO reporting name: Fulcrum) is a fourth-generation jet fighter aircraft designed in the Soviet Union.
Antonov aircraft itself is designed for Russian and Russia.More Biggest Airplanes and Aircrafts in the World's History. Antonov An-225 is the world's heaviest fixed-wing aircraft. An An-225 was completed in 1988 and a second An-225 was partially completed. The An-225 is in commercial operation carrying large loads.