 The acute phase lasts for the first few weeks or months of infection . It usually occurs unnoticed because it is symptom @-@ free or exhibits only mild symptoms that are not unique to Chagas disease . These can include fever , fatigue , body aches , muscle pain , headache , rash , loss of appetite , diarrhea , nausea , and vomiting . The signs on physical examination can include mild enlargement of the liver or spleen , swollen glands , and local swelling ( a chagoma ) where the parasite entered the body . 
 The acute phase <a href='uninflect' title='1'><mark>lasts</mark></a> for the first few weeks or months of infection . It usually <a href='uninflect' title='2'><mark>occurs</mark></a> unnoticed because it <a href='drop_aux' title='3'><mark>is</mark></a>symptom @-@ free or exhibits only mild symptoms <a href='null_relcl' title='4'><mark>that</mark></a><a href='negative_concord' title='5'><mark>are</mark></a> <a href='negative_concord' title='6'><mark>not</mark></a>unique to Chagas disease . These can include fever , fatigue , body aches , muscle pain , headache , rash , loss of appetite , diarrhea , nausea , and vomiting . The signs on physical examination can include mild enlargement of the liver or spleen , swollen glands , and local swelling ( a chagoma ) where the parasite entered the body . 
The acute phase last for the first few weeks or months of infection . It usually occur unnoticed because it symptom @-@ free or exhibits only mild symptoms ain't unique to Chagas disease . These can include fever , fatigue , body aches , muscle pain , headache , rash , loss of appetite , diarrhea , nausea , and vomiting . The signs on physical examination can include mild enlargement of da liver or spleen , swollen glands , and local swelling ( a chagoma ) where tdaparasite entered thdaody .