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Human cytomegalovirus (HCMV), human herpesvirus-6 (HHV-6), and human herpesvirus-7 (HHV-7) DNA in peripheral blood leukocytes (PBL) of 61 bone marrow transplant recipients was monitored weekly during the first 12 weeks post-transplantation by a nested polymerase chain reaction (PCR). Thirty-seven (61%), 17 (28%), and 32 (53%) of patients had one or more PBL specimens positive for HCMV, HHV-6 or HHV-7 DNA, respectively. HHV-7 DNA in PBL during the early post-transplant period was associated with a longer time to neutrophil engraftment (mean 28.8 days vs 19.8 days; P = 0.01). In two patients who failed to engraft, HHV-6 DNA and HHV-7 DNA was detected in plasma and PBL, respectively, early in their post-transplant period. Patients with HCMV disease were more likely to have concurrent HHV-7 DNA in PBL prior to onset of disease than were patients with asymptomatic HCMV infection, suggesting that HHV-7 may be a cofactor in the progression from HCMV infection to HCMV disease. In the 17 patients (179 specimens) in whom viral DNA in plasma was studied (in addition to PBL), a positive result was found only in 3. In each, viral DNA in plasma appeared to correlate with clinically significant disease. HHV-7 DNA in plasma was associated with encephalitis in an allograft recipient.

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Objective To explore Chinese women's perceptions of human papillomavirus (HPV) vaccination and their intention to be vaccinated.Design A cross-sectional community-based survey study.Setting Thirteen community women's health centres of The Family Planning Association of Hong Kong.Sample A total of 1450 ethnic Chinese women aged 18 or above who attended the health centres.Methods Participants completed a written consent and an anonymous questionnaire onsite.Main outcome measures Knowledge and beliefs about HPV and HPV vaccination against cervical cancer and participants' own intention to be vaccinated.Results About 38% of the participants (n = 527) had heard of HPV and 50% (n = 697) had heard of vaccination against cervical cancer. HPV infection was perceived to be stigmatising and detrimental to intimate, family and social relationships. Despite misconceptions and a grossly inadequate knowledge about HPV and HPV vaccination, 88% of the participants (n = 1219) indicated that they would likely be vaccinated. Majority of the participants believed that sexually experienced women should be vaccinated, while 27% opposed vaccinating sexually naive women. Younger age women who perceived a disruptive impact of HPV infection on intimate relationship and their partners' approval were significantly associated with a positive intention to be HPV vaccinated.Conclusions The easy acceptability of HPV vaccination among the mostly sexually experienced Chinese participants and their knowledge deficit on the subject may implicate potential misuse of the vaccines and a false sense of security against cervical cancer. There is a dire need for culturally sensitive and tailored education for the public, women of different ages and their partners about HPV and HPV vaccination. Emphasis must be placed on the prophylactic nature of the current vaccines, the uncertain effects when given to sexually experienced women, the importance of adolescent vaccination and the need for continued cervical screening whether vaccinated or not.