 Serological tests are used in general to detect whether a patient has developed antibodies to specific microorganism, therefore Serological tests are used to detect past encounters with Plasmodium virus rather than  cases where a patient has newly come in contain/has been infected with P. malariae and has quartan fever.
<meaning-changed>  Serological tests are used in general to detect whether a patient has developed antibodies to specific microorganism, therefore Serological tests are used to detect past encounters with Plasmodium virus rather than  cases where a patient has newly come in contain/has been infected with P. malariae and has quartan fever.
 Serological tests are used in general to detect whether a patient has developed antibodies to specific microorganism, therefore Serological tests are used to detect past encounters with Plasmodium virus rather than acute cases where a patient has newly come in contain/has been infected with P. malariae and has quartan fever.