TY - JOUR
KW - Parasitology
KW - Virology
KW - Infectious Diseases
KW - Surveillance
KW - Elimination
AU - Ramzy RM
AU - Rabiee A
AU - Abd Elaziz KM
AU - Campbell CH
AU - Kittur N
AU - Colley DG
AU - Haggag AA
AB - We assessed the feasibility of using a test, treat, track, test, and treat (5T) active surveillance strategy to
identify and treat individuals with schistosomiasis in three very low-prevalence villages in Kafr El Sheikh Governorate, Egypt. Primary index cases (PICs) were identified using the point-of-care circulating cathodic antigen (POC-CCA) assay in schools, in rural health units (retesting individuals with positive Kato–Katz examinations over the previous 6 months), and at potential water transmission sites identified by PICs and field observations. Primary cases identified potential second generation cases—people with whom they shared water activities—who were then tracked, tested, and treated if infected. Those sharing water activities with second-generation cases were also tested. The yield of PICs from the three venues were 128 of 3,576 schoolchildren (3.6%), 42 of 696 in rural health units (6.0%), and 83 of 1,156 at water contact sites (7.2%). There were 118 second- and 19 third-generation cases identified. Persons testing positive were treated with praziquantel. Of 388 persons treated, 368 (94.8%) had posttreatment POC-CCA tests 3–4 weeks after treatment, and 81.8% (301) became negative. The 67 persons remaining positive had negative results after a second treatment. Therefore, all those found positive, treated, and followed up were negative following one or two treatments. Analysis of efforts as expressed in person-hours indicates that 4,459 person-hours were required for these 5T activities, with nearly 65% of that time spent carrying out interviews, treatments, and evaluations following treatment. The 5T strategy appears feasible and acceptable as programs move toward elimination.
BT - The American Journal of Tropical Medicine and Hygiene
DO - 10.4269/ajtmh.20-0156
LA - eng
N2 - We assessed the feasibility of using a test, treat, track, test, and treat (5T) active surveillance strategy to
identify and treat individuals with schistosomiasis in three very low-prevalence villages in Kafr El Sheikh Governorate, Egypt. Primary index cases (PICs) were identified using the point-of-care circulating cathodic antigen (POC-CCA) assay in schools, in rural health units (retesting individuals with positive Kato–Katz examinations over the previous 6 months), and at potential water transmission sites identified by PICs and field observations. Primary cases identified potential second generation cases—people with whom they shared water activities—who were then tracked, tested, and treated if infected. Those sharing water activities with second-generation cases were also tested. The yield of PICs from the three venues were 128 of 3,576 schoolchildren (3.6%), 42 of 696 in rural health units (6.0%), and 83 of 1,156 at water contact sites (7.2%). There were 118 second- and 19 third-generation cases identified. Persons testing positive were treated with praziquantel. Of 388 persons treated, 368 (94.8%) had posttreatment POC-CCA tests 3–4 weeks after treatment, and 81.8% (301) became negative. The 67 persons remaining positive had negative results after a second treatment. Therefore, all those found positive, treated, and followed up were negative following one or two treatments. Analysis of efforts as expressed in person-hours indicates that 4,459 person-hours were required for these 5T activities, with nearly 65% of that time spent carrying out interviews, treatments, and evaluations following treatment. The 5T strategy appears feasible and acceptable as programs move toward elimination.
PB - American Society of Tropical Medicine and Hygiene
PY - 2020
T2 - The American Journal of Tropical Medicine and Hygiene
TI - Test, Treat, Track, Test, and Treat Active Surveillance toward Elimination of Schistosomiasis: A Feasibility Study
UR - http://www.ajtmh.org/docserver/fulltext/10.4269/ajtmh.20-0156/tpmd200156.pdf?expires=1595247043&id=id&accname=guest&checksum=EC943D9BCA623FBC4CD60408DAC6ED38
SN - 0002-9637, 1476-1645
ER -