...capable under ordinary circumstances of causing only occasional sporadic cases, while under special atmospheric or telluric conditions it acquires a degree of virulence that renders all subject to its attacks. It would seem that the susceptibility to this poison is more general than in the case of any...

...satisfactorily the coincidental prevalence of the malady at widely-separated points. Pepper suggests that the micro-organism may be almost universally...virulence that renders all subject to its attack. There is no doubt that influenza is communicable by contagion, and evidence is not wanting even to...

...satisfactorily the coincidental prevalence of the malady at widely-separated points. Pepper suggests that the micro-organism may be almost universally...virulence that renders all subject to its attack. There is no doubt that influenza is communicable by contagion, and evidence is not wanting even to...

...satisfactorily the coincidental prevalence of the malady at widely-separated points. Pepper suggests that the micro-organism may be almost universally...virulence that renders all subject to its attack. There is no doubt that influenza is communicable by contagion, and evidence is becoming abundant to...

...malady at widely-separated points. Pepper suggests that the micro-organism may be almost miiversally distributed, but only capable under ordinary circumstances...virulence that renders all subject to its attack. There is no doubt that influenza is communicable by contagion, and evidence is becoming abundant to...

...Pfeiffer must be air-borne. Pepper suggests that the micro-organism may be almost universally distributed, and that under certain extraordinary atmospheric or...virulence that renders all subject to its attack. There is no doubt that influenza is communicable by contagion, and evidence is becoming abundant to...

...coincidental prevalence of the malady at widely separated points at the same time. Pepper suggests, that the microorganism may be almost universally distributed,...cases and that under certain extraordinary atmospheric conditions, it acquires a degree of virulence that renders all subject to its attack. Predisposing...

...be almost universally distributed, and that under certain extraordinary atmospheric or telluric 11 I conditions it acquires a degree of virulence that renders all subject to its attack. Doubtless influenza is communicable by contagion, and evidence is becoming abundant to show that it...

...must be air-borne. 1'epper suggests that the micro-organism may be almost universally distributed, and that under certain extraordinary atmospheric or...virulence that renders all subject to its attack. Influenza is communicable by <-<>itt<ti/i<»t, and evidence is abundant to show that it may be transferred...

...must be air-borne. Pepper suggests that the micro-organism may be almost universally distributed, arid that under certain extraordinary atmospheric or telluric...virulence that renders all subject to its attack. Influenza is communicable by contagion, and evidence is abundant to show that it may be transferred...