The epidemiologic survey included the following information: address, onset of disease, place of work and possible contact with animals, presence of dust at the work place, water and food sources, hunting or consumption of game, and history of tick bite.
A standardized questionnaire was developed, and patients were interviewed about symptoms and their time of onset, place of residence, type of employment, diet, contact with animals, and sources of food.
Throat swabs were obtained within the first 72 h of the onset of symptoms, placed in viral transport medium (MicroTest M4, Remel Inc., Lenexa, KS, USA), and delivered by commercial carrier to the Air Force Institute for Operational Health in Brooks City Base, San Antonio, Texas, for culturing and molecular characterization.
Variables include age, sex, date of onset, place of residence, immunization status, travel history, clinical illness details, laboratory results, and information on outcome.
Health workers collected information about sociodemographic profile, date of onset, and place of residence from all suspected case-patients.
We obtained surveillance data for malaria cases, including information about the date of onset and place of residence, from the Korea Centers for Disease Control and Prevention (Osong, ROK), which monitors and manages malaria in the ROK as a nationally notifiable communicable disease.
However, the onset of feeding took place at 5 dph, while 100% of feeding occurred at 6 dph.
Clinical onset of GvHD took place relatively late.
Of the women in primary care at the onset of labour, planned place of birth was unknown for 18 070 and these women were not included in the analyses (fig 1).
f) Remind the patient to stop the test upon the onset of pain, and place the applicator tip over the mark.
The onset of viremia took place around day 8 for Lassa and day 4 for Marburg (confirmed by both plaque assay and RT-PCR).
