Streptococcus agalactiae strain W8A6

Streptococcus agalactiae strain W8A6 is a Gram-positive bacterium characterized by its cocci shape and arrangement in chains or pairs. As a facultative anaerobe, it is capable of thriving in both the presence and absence of oxygen, with an optimal growth temperature of 37°C, classifying it as mesophilic. This strain has a single membrane and one replicon, indicating a relatively simple cellular structure. The primary habitat of S. agalactiae strain W8A6 is host-associated, where it exhibits a free-living biotic relationship. Its known hosts include humans (Homo sapiens), various bovine species (Bos taurus, Bos), and several fish species such as Oreochromis niloticus (Tilapia) and Lates calcarifer. This broad host range suggests that the strain has adapted to different environments and biological systems. S. agalactiae is associated with a range of significant health effects. In humans, it is known to cause serious conditions including bacteremia, pneumonia, meningitis, and neonatal infections such as meningitis and sepsis. In bovines, it is implicated in mastitis and subclinical mastitis, which can impact dairy production. The bacterium is also linked to streptococcal toxic shock syndrome (STSS) and acute rheumatic fever (ARF), highlighting its pathogenic potential. The ecological insight from the data indicates that S. agalactiae strain W8A6 plays a critical role in both human and animal health, necessitating ongoing research into its pathogenic mechanisms and interactions with various hosts.