The value of faecal leucocyte examination was assessed in 400 infants with acute diarrhoea and 40 normal healthy infants. Enteropathogens were isolated from 28.75%. Escherichia coli was the commonest (16.5%) followed by Salmonella typhimurium (7%), Vibrio cholerae (3.25%) and Shigella flexneri (1.5%). Exudative response was observed in 57.1% of stools with Salmonella and 66.6% each with Shigella and E.I.E.C. infections. 81.3%, 89.5% and 87.7% of stools from which EPEC and ETEC and no enteropathogens respectively were isolated showed minimal or no Leucocytic response. The test is useful to recognise probable invasive bacterial diarrhoea and to decide the cases in which stool culture could be advantageous.

Forced vital capacity, Forced expiratory volume in 1 second, expiratory flow rates and V max at different lung volumes were statistically unchanged during the course of pregnancy compared to non pregnant control group. There was no restrictive or obstructive defects during the course of pregnancy despite the added mechanical load to the respiratory apparatus by the gravid uterus.

A sample survey of immunisation coverages in children in the rural areas of Varanasi was undertaken to study how the socio-economic status of parents affects immunisation of their children. The present state of affairs in immunisation programme in India inspite of its established utility and added attempts towards its implementation, seems to be unsatisfactory. The entire problem is very closely linked with education and socio-economic uplift of the people.

The paper compares the prevalence of oral carcinoma and dysplasia in smokeless tobacco users and non users. A total of 3205 subjects were studied. Of the smokeless tobacco users, 1.96 percent had oral carcinoma compared with 0.36 percent of non-users. The prevalence of oral dysplasia in the users' group was 14.4 percent as compared with 6.85 percent in the group of non-users.