BSL4 Facilities in Anti-Infectious Disease Measures

2009 ◽  
Vol 4 (5) ◽  
pp. 352-355 ◽  
Author(s):  
Ichiro Kurane ◽  

Pathogens are divided into biosafety levels (BSL) 1 to 4 based on multiple factors such as virulence, transmissibility, environment effect, and treatment availability. BSL1 pathogens are the least virulent and BSL4 the most. BSL4 pathogens include ebolavirus, marburgvirus, Crimean-Congo hemorrhagic fever virus, lassa virus, variolla virus, and South American hemorrhagic fever viruses, as detailed in Table 1. Pathogens at each of the 4 BSLs must be handled in equivalently physically contained laboratories, graded P1-4. BSL4 pathogens do not exist in nature in Japan, which currently has no equivalent physical containment facilities, but the possibility exists that they may be brought into the country unintentionally by those infected in endemic areas or intentionally by bioterrorists.

2020 ◽  
Vol 15 (4) ◽  
pp. 247-254
Author(s):  
Murat Karamese ◽  
Erkan Ozmen ◽  
Hakan Aydin ◽  
Mehmet Ozkan Timurkan ◽  
Mesud Fakirullahoglu

Aim: The objective was to investigate the genotypic relationship of S and M segments in Crimean-Congo hemorrhagic fever virus (CCHFV) by phylogenetic analysis in 25 patients from seven endemic cities in Turkey. Materials & methods: A total of 25 samples from patients with CCHF were included between 2012 and 2015. Phylogenetic tree analyses were inferred using MEGA version-6.0 and distances were calculated by Kimura’s 2-parameter. Results: Phylogenetic analysis showed that all isolated viruses (n = 25) were in the predicted clades such as clade V- Europe-1 regarding both S and M segments of the CCHFV. Conclusion: Further epidemiological, molecular and phylogenic studies should be performed in both reservoir animals/vectors and humans to determine the incidence of tick-borne infectious disease and to help to develop vaccines for prevention of the disease.


Author(s):  
Paul A. Kuehnert ◽  
Christopher P. Stefan ◽  
Catherine V. Badger ◽  
Keersten M. Ricks

Abstract Purpose of Review This review is aimed at highlighting recent research and articles on the complicated relationship between virus, vector, and host and how biosurveillance at each level informs disease spread and risk. Recent Findings While human cases of CCHFV and tick identification in non-endemic areas in 2019–2020 were reported to sites such as ProMed, there is a gap in recent published literature on these and broader CCHFV surveillance efforts from the late 2010s. Summary A review of the complex aspects of CCHFV maintenance in the environment coupled with high fatality rate and lack of vaccines and therapeutics warrants the need for a One-Health approach toward detection and increased biosurveillance programs for CCHFV.


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