005900000a22002050004500003000900000005001700009264004700026020002200073100002600095700002500121245005800146300001000204041000800214650003300222650004000255650002600295650002800321650002400349040001100373PH-MaWHO20241108112605.0  aOxford : bOxford University Press,c1991.  a019854040Xq(pbk)  aAnderson, Roy Malcolm  aMay, Robert McCredie  aInfectious diseases of humans : dynamics and control.  a757p.  aeng  aCommunicable disease control  aCommunicable diseasesxParasitology  aEpidemiologic methods  aHost-parasite relations  aModels, Theoretical  aWHOLIS