High Risk Behaviours and Schistosomiasis Infection in Kumba, South-West Province, Cameroon

Despite strong circumstantial evidence to suggest that the main route of TB transmission from badgers to cattle is via contaminated badger excreta, it is unclear whether the associated risks are high enough to account for the prevalence of the disease in south-west England. To decide whether this was a viable route of transmission, cattle contact with badger excreta was investigated using a deterministic approach to quantify the risks to cattle posed by badger excreta. Levels of investigative and grazing contacts between cattle and badger urine and faeces could each account for the disease prevalence in south-west England. An infection probability of 3·7×10−4 per bite from pasture contaminated with badger urine infected with Mycobacterium bovis could account for the prevalence of TB in cattle in south-west England. Infection probabilities of 6·9×10−7 per investigation and 1·1×10−7 per bite from badger latrines could each account for the prevalence of TB in cattle in the south-west. When considering only the high risk areas of south-west England these bounds fell by a factor of eight. However, badger excreta may still constitute a high level of risk to cattle. The levels of cattle contact with badger excreta are far higher than previously thought, suggesting that it is the probability of infection per given contact with infected badger excreta which has the greater influence on the probability of transmission and not the level of contact. The infection probability per cattle contact with infected badger excreta is in all likelihood extremely low.

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HPV infection and high - risk behaviours among men who have sex with men in the two biggest cities of Vietnam

Tạp chí Y học Dự phòng ◽

10.51403/0868-2836/2020/120 ◽

2021 ◽

Vol 30 (9) ◽

pp. 34-41

Author(s):

Le Anh Tuan ◽

Tran Hoang My Lien ◽

Bui Dieu Thuy Linh Anna ◽

Hoang Tuan Anh ◽

Nguyen Thi Thuy Duong ◽

...

Keyword(s):

High Risk ◽

Hpv Infection ◽

Cross Sectional Study ◽

Risk Behaviours ◽

Cross Sectional ◽

Medical Interventions ◽

Hpv Status ◽

High Risk Type ◽

Sex With Men ◽

Group Sex

The objective of a cross sectional study is to describe the situation of human papillomavirus (HPV) infection and risk behaviours among 800 men who have sex with men (MSM) in Hanoi and Ho Chi Minh City (HCMC) from December 2017 to May 2018 using respondent - driven sampling method (RDS). The results showed that the prevalence of any type of HPV infection was 29.8% (33% in HCMC, 26.5% in Hanoi) and the prevalence of any high - risk type of HPV infection was 24.0% (29.0% in HCMC, 19.0% in Hanoi). The risk behaviours to HPV among MSM in both cities included: Alcohol use (69.9%), smoking (30.7%), drug use (8.5%), having frst sexual intercourse under 18 years old (31.8%), having group sex (10.5%), having sex with both men and women (21.7%). The factors which had statistically signifcant differences with HPV status in MSM group included: City, age group, and marital status. These results showed that there is a need for medical interventions for MSM to improve individual health as well as to minimize the transmission of HPV in this population.

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