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Table 3 Correlation between seasonal variation and parasitic diarrhoea

From: Correlation between CD4 counts of HIV patients and enteric protozoan in different seasons – An experience of a tertiary care hospital in Varanasi (India)

Parasites Summer Rainfall Winter
Isolated (March–June) (July–October) (Nov–Feb)
  Cases Controls Cases Controls Cases Controls
Cryptosporidium spp. 19 (5.1%) 13 (6.5%) 111 (30.3%) 23 (11.5%) 16 (4.3%) 6 (3%)
Microsporidia spp. 32 (8.7%) -- 38 (10.3%) -- 28 (7.6%) --
Cyclospora spp. 56 (15.3%) 2 (1%) 25 (6.8%) 1 (0.5%) 7 (1.1%) --
Giardia spp. 9(2.4%) -- 21(5.7%) -- 7(1.1%) --
Entamoeba spp. 5(1.3%) 1(0.5%) 4(1.0%) 3(1.5%) 2(0.5%)  
Isospora belli 2(0.5%) -- -- -- -- --
Hookworm 5 (1.3%) 10 (5%) 12 (3.2%) 27 (13.5%) -- s3 (1.5%)
Trichuris trichiura 4(1.0%) -- 3(0.8%) -- 2(0.5%) --
H. nana -- -- 2(0.5%) 4(2%) -- 2(1%)
  1. Figures in parentheses express the percentage (%) of parasites isolated.