69281
The basic experimental toolkit of phage " organismal " ecology consists of the single-step growth ( or one-step growth ; Single-step growth is a means of determining the phage latent period ( [ https://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=14660403&dopt=Citation example ] ) , which is approximately equivalent ( depending on how it is defined ) to the phage period of infection .
 latent period
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 latent period