Each measurement of [OH] with this method at the accuracy necessary to test fast photochemical theory requires one month of chromatographic analysis following sample collection in the field.
SMN protein levels, measured using sensitive quantitative fluorescent western blotting, declined rapidly over a period of several days following sample collection, especially when protein was extracted immediately and stored at −20 °C.
In the 6 months following sample collection, 41 individuals (40 children, 1 adult) had at least one episode of symptomatic malaria, and survival analysis was performed for children only (2 5 years, n = 43 and 6 14 years, n = 57).
How do the downstream processes following sample collection work (including technology, time, cost, intellectual property, etc)?
The samples were analyzed using the Cholestech LDX system (Cholestech, Hayward, CA) immediately following sample collection.
Positive results were obtained following sample collection based on information learned during the epidemiologic investigation.
If this is not possible, samples should be stored by freezing as soon as possible following sample collection and that freeze-thaw cycles are minimized.
In January 2014, following sample collection by trained research assistants, participants with acute respiratory infection from 30 households subsequently collected and returned a self-collected/parent-collected nasal swab via mail.
Following late season surveys of the entire island in all 3 years, birds were classified as dead if their carcass was found on site during or after incubation, or classified as alive if they were resighted in up to 3 years following sample collection.
Clinical or field staff who received training on sample collection as per study protocol were involved in the collection of the following samples: Nasopharyngeal Swabs (NPS) were collected by inserting a calcium alginate (Expotech USA Inc) swab into the posterior wall of the nasopharynx.
