Bacteriophages in 4: Host specific — Host specific — Section 825: Host specific

Viruses that infect bacteria — Earth's most abundant biological entities, and a concept-level idea in medicine. Bacteriophages are viruses that infect bacteria. They are not cells, not human pathogens, and not a supermarket probiotic. Many tailed forms inject DNA and, in the lytic path, burst the host. When reading the “Host specific” stage inside the Bacteriophages atlas entry, recording both the reference period and the operating boundary around figure 4 prevents common misinterpretations in real-world decisions.

They may be the most numerous biological particles on Earth. Bacteria remember them with CRISPR. People noticed them in 1915–1917, then built molecular biology on their backs. Phage therapy exists as a concept and as limited clinical practice. This atlas explains the idea and refuses recipes, isolation steps and engineering instructions.

Bacteriophages: Read inside the Tree of microbes cluster before cross-atlas jumps. Rather than relying on simplified league tables or slogans, keeping the primary Bacteriophages section open beside benchmark 4 (“Host specific”) gives operators and readers a verifiable decision trail. In practice, verifying benchmark figure 825 (paragraph 3) alongside the primary atlas table prevents misinterpretation across operating conditions and local frameworks.