After spending approximately 40 weeks inside the womb, the average newborn weighs 7 1/2 pounds. Most babies weigh between 5 1/2 and 10 pounds. The average length of a newborn is 20 inches (50 centimeters), with a range of 18 to 22 inches. The average head circumference (the distance around the head) is 14 inches (35 centimeters).
Lactobacillus and Bifidobacterium are the most common probiotic bacteria. The Lactobacillus genus has 18 different bacteria strains, while the Bifidobacterium genus consists of eight strains.
Caption: Citrobacter freundii-Gram-negative, anaerobic prokaryote (bacterium). It is a Proteobacteria in the Enterobacteriaceae family. It can be found in soil, water, sewage, and food.Citrobacter species use citrate as a carbon source.Citrobacter freundii and Citrobacter diversus are often the cause of opportunistic infections. Citrobacter spp. cause neonatal meningitis but are unique in their frequent association with brain abscess formation.t can be found in soil, water, sewage, and food. Citrobacter species use citrate as a carbon source. Citrobacter freundii and Citrobacter diversus are often the cause of opportunistic infections.