Emerging Infectious Disease ISSN: 1080-6059
Volume 7, Number 3—June 2001
Perspective
Seasonal Variation in Host Susceptibility and Cycles of Certain Infectious Diseases
Figure 2

Figure 2. . Seasonal variation in the incidence of poliomyelitis by latitude, 1956-57. As distance from the equator increases, a higher proportion of cases are evident in summer and fall months. Adapted from reference 9.
New Flu Virus in Pigs Exhibited at Fairs in Ohio
Length: 11:58





