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.
Mikoyan-Gurevich MiG-17. The Mikoyan-Gurevich MiG-17 (Russian: Ð¼Ð¸ÐºÐ¾ÑÐ½ Ð¸ Ð³ÑÑÐµÐ²Ð¸Ñ Ð¼Ð¸Ð³-17) (NATO reporting name: Fresco) (China:Shenyang J-5) (Poland: PZL-Mielec Lim-6) is a high-subsonic fighter aircraft produced in the USSR from 1952 and operated by numerous air forces in many variants.
Aircraft are a further development of combat aircraft MiG-29K/KUB and MiG-29M towards improving combat effectiveness and versatility, as well as improved performance. MiG-35 - universal aircraft survivable in combat. Advantage it gives improved avionics systems aiming 5th generation and heavier armament. **************. MiG-29KUB-Deck multirole fighter 4th generation, which is a further development of the MiG-29. Designed to meet the challenges of air defense of naval forces, air supremacy, defeat surface and ground targets with precision weapons, day and night in all weather conditions.