TABLE 1.

Correlation between cryptosporidial positivity rates and values for the various meteorological parameters in the three centers

Characteristic	Delhi		Trichy		Vellore
	Rhoa	P	Rho	P	Rho	P
Mean monthly maximum temp	0.608	<0.001	−0.15	0.384	−0.094	0.58
Mean monthly minimum temp	0.475	0.003	−0.093	0.59	0.097	0.569
Total monthly rainfall	0.218	0.201	0.195	0.253	0.233	0.165
Mean monthly relative humidity at 8:30 a.m.	−0.487	0.003	0.193	0.26	−0.149	0.378
Mean monthly relative humidity at 5:30 p.m.	−0.091	0.596	0.131	0.446	0.255	0.128

^aSpearman's rank order correlation coefficient.