Macrophage

Macrophage-Tropic Virus

Magnetic Resonance Imaging (MRI)

Maintenance Therapy

Major Histocompatibility Complex (MHC)

Malabsorption Syndrome

Malaise

Malaria

Malignant

Mantoux Tuberculin Skin Test

Mast Cell

Mastocyte

Maternal-Child Transmission

Medication Event Monitoring System (MEMS)

MEDLINE

MedlinePlus

Memory Cell

Memory Lymphocyte

Meningitis

Messenger RNA (mRNA)

Metabolic

Metabolic Syndrome

Metabolism

Microbe

Microbicide

Microbicide Trials Network (MTN)

Microorganism

Microsporidiosis

Mitochondria

Mitochondrial Toxicity

Mixed-Tropic HIV

Modified Directly Observed Therapy (m-DOT)

Molluscum Contagiosum

Monoinfection

Mononeuropathy

Monotherapy

Morbidity

Mortality

Mother-to-Child Transmission (MTCT)

MSM

MSMW

M-Tropic Virus

Mucocutaneous

Multicenter AIDS Cohort Study (MACS)

Multiple Drug Resistant Tuberculosis (MDR-TB)

Multivalent Vaccine

Mutagenic

Mutation

Myalgia

Mycobacterium Avium Complex (MAC) Infection

Mycobacterium Avium-Intracellulare (MAI) Infection

Mycobacterium Kansasii Infection

Mycobacterium Tuberculosis

Mycosis

Myelin

Myelosuppression

Myocardial Infarction

Myodynia

Myoneuroalgia

Myopathy