There is no absolute proof that Convenia caused their deaths but there is an extremely high index of suspicion that this drug was the culprit since this class of drugs is known to cause anemia. (catinfo.org)
1) Always treat reports of clusters of unexpected and unexplained deaths with at least a «high index of suspicion» that the cause may be something of potential global concern. (fortune.com)
«We will like to state that given the high index of suspicion, the increasing number of suspected cases may not be out of place as health practitioners are more likely to include Lassa fever as a differential diagnosis in their health care facilities. (nigeriapoliticsonline.com)