The information below comes from Integrated analysis of gut microbiome and host immune responses in COVID-19 [2022]. While the data comes from COVID patients, there is a good chance that it may apply to other conditions. The items below are for the strongest p-values (most likely). My intent is to add all items with a value with a p Value of 0.05 or less as an experimental page, before creating the page I hope people will find similar studies that can be combined with this data. Please add as comments.

Gut_microbes	Blood_clinical_features	Correlation	Pvalue
Coprococcus_comes	CD8_counts	0.73173549	1.95E-06
Coprococcus_comes	CD3_counts	0.714258257	4.41E-06
Coprococcus_comes	Lymphocytes_counts	0.649787455	5.71E-05
Coprococcus_comes	CD45_counts	0.647009338	6.29E-05
Roseburia_intestinalis	CD8_counts	0.63669604	8.94E-05
Roseburia_intestinalis	CD3_counts	0.619860729	0.00015457
Roseburia_intestinalis	CD45_counts	0.611747625	0.000199038
Streptococcus_oralis	Eosinophil_counts	0.603056198	0.000258997

Gut_microbes	Organ_damage_related_factors	Correlation	Pvalue
Akkermansia_muciniphila	Creatine_kinase_isoenzymes	0.889522704	1.00E-11
Bacteroides_cellulosilyticus	Creatine_kinase_isoenzymes	0.88177523	2.63E-11
Streptococcus_oralis	Gamma_glutamyltransferase	0.788443186	8.39E-08
Akkermansia_muciniphila	Aspartate_Transaminase	0.784368908	1.08E-07
Bacteroides_cellulosilyticus	Aspartate_Transaminase	0.766075518	3.22E-07

Gut_microbes	Cytokines	Correlation	Pvalue
Ruminococcus_gnavus	IL17	0.513431966	0.002652723
Klebsiella_pneumoniae	IFNG	0.484801301	0.004922183
Klebsiella_pneumoniae	IL10	0.431582818	0.01364772
Lachnospira_eligens	IL2	0.393008018	0.026072229

Gut_microbes	Coagulation_factors	Correlation	Pvalue
Enterococcus_durans	APTT	0.358216937	0.044101648
Enterococcus_faecium	APTT	0.357152676	0.044780215