Affiliation unit: Lanzhou Institute of Glaciology and Cold Regions Environment, CAS Brief history: The Laboratory of Ice Core and Cold Regions Environment (LICCRE) was formally approved to open domestically and intern...Affiliation unit: Lanzhou Institute of Glaciology and Cold Regions Environment, CAS Brief history: The Laboratory of Ice Core and Cold Regions Environment (LICCRE) was formally approved to open domestically and internationally by Chinese Academy of Sciences in April 1997. It is attached to the Lanzhou Institute of Glaciology and Geocryology, CAS.展开更多
Objective:To evaluate the polio laboratory surveillance carried out from January,2019 to May,2023 by the Polio Regional Reference Laboratory,Sri Lanka.Methods:This retrospective study analyzed all stool samples receiv...Objective:To evaluate the polio laboratory surveillance carried out from January,2019 to May,2023 by the Polio Regional Reference Laboratory,Sri Lanka.Methods:This retrospective study analyzed all stool samples received under the acute flaccid paralysis(AFP)and immunodeficient vaccine-derived poliovirus(VDPV)surveillance at Polio Regional Reference Laboratory,Sri Lanka from January,2019 to May,2023.The results of the testing methodologies were extracted from the laboratory data system,i.e.,poliovirus virus isolation,intra-typic differentiation/VDPV real time reverse transcriptase polymerase chain reaction(ITD/VDPV rRTPCR)and sequencing,along with the data on timing of reporting results,stool adequacy and socio-demographics.Data was analyzed using descriptive statistics.Results:A total of 2141 stool samples from 1644 cases were received for AFP surveillance from Sri Lanka(93.61%),Maldives(1.52%),and immunodeficient VDPV(4.86%)surveillance.Both polioviruses(19/1644,1.15%)and non-polio enteroviruses(73/1644,4.44%)were isolated,while Sabin-like 3 virus was detected in majority(12/19,63.15%)among the poliovirus isolated.Wild polioviruses or circulating VDPVs were not detected among the cases.During all years of the study,the non-polio AFP detection rate was>1/100000 in children aged less than 15 years,whereas stool adequacy rate was>80%.All results were reported within 14 days of receipt,ensuring timely reporting as per global guidelines.Conclusions:The Polio Regional Reference Laboratory,Sri Lanka plays a vital role in maintaining the polio-free status in the country through its robust laboratory surveillance,while adhering to the surveillance indicators.Non-detection of wild polioviruses and circulating VDPV during the study period reinforces the polio-free status in the country.展开更多
<strong>Background:</strong> <span style="font-family:""><span style="font-family:Verdana;">Infertility is a major reproductive health care problem that affects the wel...<strong>Background:</strong> <span style="font-family:""><span style="font-family:Verdana;">Infertility is a major reproductive health care problem that affects the wellbeing of women. Although views vary between cultures, infertility is seen almost exclusively as a woman’s problem in Africa with secondary infertility being the most prevalent while sexually transmitted infections the most investigated cause of infertility. </span><b><span style="font-family:Verdana;">Objective: </span></b><span style="font-family:Verdana;">The aim of this study was</span><span style="font-family:Verdana;"> to determine the prevalence of female infertility in the Limbe and Buea Regional hospitals of the Southwest region of Cameroon from 2015-2019.</span></span><span style="font-family:""> </span><b><span style="font-family:Verdana;">Materials and Methods: </span></b><span style="font-family:Verdana;">A retrospective descriptive design was used which involved studying clinical files of women within the reproductive age group (15 </span><span style="font-family:Verdana;">-</span><span style="font-family:""><span style="font-family:Verdana;"> 49) with infertility problems, at the </span><span style="font-family:Verdana;">gynaecological</span><span style="font-family:Verdana;"> and maternity units of the selected hospitals in the Southwest region of Cameroon </span><span style="font-family:Verdana;">over a period of</span><span style="font-family:Verdana;"> five years (2015-2019). Data were collected from all files included in the study.</span></span><span style="font-family:""> </span><b><span style="font-family:Verdana;">Results: </span></b><span style="font-family:""><span style="font-family:Verdana;">A total of 4609 females visited the two hospitals for investigation and 1111 files were identified with infertility giving </span><span style="font-family:Verdana;">prevalence</span><span style="font-family:Verdana;"> of 24 %. Three hundred and </span><span style="font-family:Verdana;">forty</span></span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">three</span><span style="font-family:""><span style="font-family:Verdana;"> (343;31%) presented with primary infertility while seven hundred and </span><span style="font-family:Verdana;">sixty</span></span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">eight</span><span style="font-family:""><span style="font-family:Verdana;"> (768;69%) had secondary infertility. The average age of affected </span><span style="font-family:Verdana;">female</span><span style="font-family:Verdana;"> was 31.5 making age the predisposing factor of infertility because </span><span style="font-family:Verdana;">after</span><span style="font-family:Verdana;"> the peak of 25 years</span></span><span style="font-family:Verdana;">,</span><span style="font-family:""><span style="font-family:Verdana;"> infertility </span><span style="font-family:Verdana;">start</span></span><span style="font-family:Verdana;">ed</span><span style="font-family:""><span style="font-family:Verdana;"> decreasing. Employment with salary and the association between diagnosis and age had a </span><b><span style="font-family:Verdana;">p</span></b><span style="font-family:Verdana;">-value < 0.005 which was considered significant in this study.</span></span><span style="font-family:""> </span><b><span style="font-family:Verdana;">Conclusion: </span></b><span style="font-family:Verdana;">This study found that the prevalence of infertility in Southwest Cameroon is high with secondary infertility being most predominant among infertile women with a prevalence of 69% caused principally by sexually transmitted infection (STIs). Age and occupation were significantly associated with infertility. Routine laboratory screening of women of reproductive age may reduce the high prevalence of infertility in the study area.</span>展开更多
文摘Affiliation unit: Lanzhou Institute of Glaciology and Cold Regions Environment, CAS Brief history: The Laboratory of Ice Core and Cold Regions Environment (LICCRE) was formally approved to open domestically and internationally by Chinese Academy of Sciences in April 1997. It is attached to the Lanzhou Institute of Glaciology and Geocryology, CAS.
文摘Objective:To evaluate the polio laboratory surveillance carried out from January,2019 to May,2023 by the Polio Regional Reference Laboratory,Sri Lanka.Methods:This retrospective study analyzed all stool samples received under the acute flaccid paralysis(AFP)and immunodeficient vaccine-derived poliovirus(VDPV)surveillance at Polio Regional Reference Laboratory,Sri Lanka from January,2019 to May,2023.The results of the testing methodologies were extracted from the laboratory data system,i.e.,poliovirus virus isolation,intra-typic differentiation/VDPV real time reverse transcriptase polymerase chain reaction(ITD/VDPV rRTPCR)and sequencing,along with the data on timing of reporting results,stool adequacy and socio-demographics.Data was analyzed using descriptive statistics.Results:A total of 2141 stool samples from 1644 cases were received for AFP surveillance from Sri Lanka(93.61%),Maldives(1.52%),and immunodeficient VDPV(4.86%)surveillance.Both polioviruses(19/1644,1.15%)and non-polio enteroviruses(73/1644,4.44%)were isolated,while Sabin-like 3 virus was detected in majority(12/19,63.15%)among the poliovirus isolated.Wild polioviruses or circulating VDPVs were not detected among the cases.During all years of the study,the non-polio AFP detection rate was>1/100000 in children aged less than 15 years,whereas stool adequacy rate was>80%.All results were reported within 14 days of receipt,ensuring timely reporting as per global guidelines.Conclusions:The Polio Regional Reference Laboratory,Sri Lanka plays a vital role in maintaining the polio-free status in the country through its robust laboratory surveillance,while adhering to the surveillance indicators.Non-detection of wild polioviruses and circulating VDPV during the study period reinforces the polio-free status in the country.
文摘<strong>Background:</strong> <span style="font-family:""><span style="font-family:Verdana;">Infertility is a major reproductive health care problem that affects the wellbeing of women. Although views vary between cultures, infertility is seen almost exclusively as a woman’s problem in Africa with secondary infertility being the most prevalent while sexually transmitted infections the most investigated cause of infertility. </span><b><span style="font-family:Verdana;">Objective: </span></b><span style="font-family:Verdana;">The aim of this study was</span><span style="font-family:Verdana;"> to determine the prevalence of female infertility in the Limbe and Buea Regional hospitals of the Southwest region of Cameroon from 2015-2019.</span></span><span style="font-family:""> </span><b><span style="font-family:Verdana;">Materials and Methods: </span></b><span style="font-family:Verdana;">A retrospective descriptive design was used which involved studying clinical files of women within the reproductive age group (15 </span><span style="font-family:Verdana;">-</span><span style="font-family:""><span style="font-family:Verdana;"> 49) with infertility problems, at the </span><span style="font-family:Verdana;">gynaecological</span><span style="font-family:Verdana;"> and maternity units of the selected hospitals in the Southwest region of Cameroon </span><span style="font-family:Verdana;">over a period of</span><span style="font-family:Verdana;"> five years (2015-2019). Data were collected from all files included in the study.</span></span><span style="font-family:""> </span><b><span style="font-family:Verdana;">Results: </span></b><span style="font-family:""><span style="font-family:Verdana;">A total of 4609 females visited the two hospitals for investigation and 1111 files were identified with infertility giving </span><span style="font-family:Verdana;">prevalence</span><span style="font-family:Verdana;"> of 24 %. Three hundred and </span><span style="font-family:Verdana;">forty</span></span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">three</span><span style="font-family:""><span style="font-family:Verdana;"> (343;31%) presented with primary infertility while seven hundred and </span><span style="font-family:Verdana;">sixty</span></span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">eight</span><span style="font-family:""><span style="font-family:Verdana;"> (768;69%) had secondary infertility. The average age of affected </span><span style="font-family:Verdana;">female</span><span style="font-family:Verdana;"> was 31.5 making age the predisposing factor of infertility because </span><span style="font-family:Verdana;">after</span><span style="font-family:Verdana;"> the peak of 25 years</span></span><span style="font-family:Verdana;">,</span><span style="font-family:""><span style="font-family:Verdana;"> infertility </span><span style="font-family:Verdana;">start</span></span><span style="font-family:Verdana;">ed</span><span style="font-family:""><span style="font-family:Verdana;"> decreasing. Employment with salary and the association between diagnosis and age had a </span><b><span style="font-family:Verdana;">p</span></b><span style="font-family:Verdana;">-value < 0.005 which was considered significant in this study.</span></span><span style="font-family:""> </span><b><span style="font-family:Verdana;">Conclusion: </span></b><span style="font-family:Verdana;">This study found that the prevalence of infertility in Southwest Cameroon is high with secondary infertility being most predominant among infertile women with a prevalence of 69% caused principally by sexually transmitted infection (STIs). Age and occupation were significantly associated with infertility. Routine laboratory screening of women of reproductive age may reduce the high prevalence of infertility in the study area.</span>