… survival of influenza virus and poliomyelitis virus was studied, influenza representing the
winter diseases and poliomyelitis the … The transition is rather sharp at 50-60% relative humidity. …

… factors may determine the immediate and long term survival … influenza and poliomyelitis as
winter and summer diseases, … of Hemmes et al,6 must therefore relate to viral dissemination …

… Aerosolized influenza virus was shown to be inactivated rapidly … virus,virus, poliovirus and
the T1, T2 and T7 coliphages. … dilutions and that yielding 50 to 60 plaques/dish was counted. …

… as a group with particular properties in 1960 (1), although two … Hemmes and his colleagues
in Holland (13) found that over a certain temperature range, poliomyelitis virus, a summer …

… survival of the causative virus in the dry state. For many organisms survival in air can be taken
as indicator for survival … on the survival of the viruses of influenza and poliomyelitis in air. …

… a polio-like illness was described in one man 16 days after contact with … Factors likely to
prolong the survival of viruses under polar conditions, … 1960. Immunologic study on respiratory …

… To investigate the transmission of influenza viruses via hands and environmental surfaces,
the survival of laboratory-grown influenza A and influenza B viruses on various surfaces was …

… , and other seasonality factors could establish whether viral … to increase virulence in mice
(9, 60). Additionally, mice fed a … favorable for virus survival (42). Aerosolized transmission of …

… ) found that, indoors, the survival rate of the polio virus increased … above 60~.Alternatively,
or in addition, … In influenza the effects of temperature and humidity should be easier to …

… In contrast, poliovirus does not survive drying well but survives … countries we have seen
poliomyelitis develop from a disease of … in mosquitoes over 100 days in a cellar at 50 to 60 F. …