The purpose of this study is to assess the duration of the viral shedding in hematology and oncology patients after a respiratory tract viral infection. This duration has not been much studied in that population whereas it is probably longer than that in immunocompetent patients. Thereby it may be a source of transmission amongst these immunocompromised patients.
The development of multiplex polymerase chain reaction (PCR) tests has greatly improved the diagnosis of respiratory tract viral infections by increasing its sensitivity and the diversity of viral species detected. However, there are few data concerning respiratory tract viral infections amongst hematology and oncology patients. Especially, the duration of viral shedding following an infection has not been much studied whereas it is a source of inter-individual transmission between immunocompromised patients who are more likely to develop severe disease. Studies conducted so far concerned mainly hematology patients. They have shown that viral carriage could last up to one month and a half in some patients with hematological malignancy. The aim of this study is to determine the duration of the viral shedding in patients from hematology and oncology units after a respiratory tract viral infection for the ten main viruses involved in order to better manage these infections and to better prevent their transmission.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
PREVENTION
Masking
NONE
Enrollment
44
Iterative nasal swabs will be performed to screen for virus shedding
University Hospital of Poitiers
Poitiers, France
Nasal carriage of virus after a viral respiratory tract infection
Iterative nasal swab to assess the duration of that carryiage
Time frame: Up to 1 year
Prevalence of upper and lower respiratory tract infections
Time frame: 2 years
Prevalence of viral coinfections
Time frame: 2 years
Prevalence of bacterial coinfections
Time frame: 2 years
transmission of respiratory tract viral infections by relatives
with a survey filled by the patient
Time frame: 2 years
respiratory complications due to respiratory tract viral infections
Time frame: 2 years
extra-pulmonary symptoms due to respiratory tract viral infections
Time frame: 2 years
effect of influenza vaccine on viral shedding
Time frame: 2 years
risk factors to do severe form of respiratory tract infection
Time frame: 2 years
nosocomial transmission of respiratory tract viral infection
Time frame: 2 years
delay of chemotherapy due to respiratory infection
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Time frame: 2 years
survival after a respiratory tract viral infection
Time frame: 30 days
TTV viral load as a marker of immunodepression in oncology and hematology patients
TTV viral load at each visit
Time frame: 2 years
Correlation between TTV viral load and duration of viral shedding and severity of respiratory tract infection
Time frame: 2 years